FA-66011 / Aviation weight and balance / Open access

Summer and winter standard weights transposed · case 01

Winter loadsheets are lighter than summer ones for the same passenger count.

Verified by executionVariant 1 · 9 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

The season table assigns winter clothing allowances to summer and vice versa.

THE FAILURE

The season table assigns winter clothing allowances to summer and vice versa.

Unsuccessful approach: Fixing only the adult column leaves the child weights on the wrong season.

Case contract

Input {'season','rows':[[arm, adults, children, lap infants]],'bags':[[arm,count]]}. Standard weights: adult 190/195, child 82/87 (summer/winter); lap infants weigh 0 (included with the adult); bags 28 lb. Rows are numbered from 1; more than 3 seated (adults+children) -> 'ERR_ROW_<n>_SEATS'; more infants than adults -> 'ERR_ROW_<n>_INFANTS'. Return [weight, moment r1].

Why this case matters

Standard passenger weights vary by season and passenger type; lap infants do not occupy seats but require an accompanying adult.

1 / The failure

Exit 1

"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    std = {'summer': (195, 87), 'winter': (190, 82)}
    aw, cw = std[x['season']]
    w = 0
    m = 0.0
    for i, (arm, ad, ch, inf) in enumerate(x['rows'], 1):
        if ad + ch > 3: return 'ERR_ROW_%d_SEATS' % i
        if inf > ad: return 'ERR_ROW_%d_INFANTS' % i
        rw = ad * aw + ch * cw
        w += rw
        m += rw * arm
    for arm, count in x['bags']:
        w += count * 28
        m += count * 28 * arm
    return [w, round(m, 1)]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 2, 1]], 'bags': [[300.0, 5]]}, [1526, 246660.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 1]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[131.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 91470.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 10]]}, [280, 78400.0]], ['sampled case 1', {'season': 'winter', 'rows': [[123.2, 3, 0, 2], [224.7, 2, 0, 1], [209.0, 3, 0, 3], [101.5, 0, 3, 0], [123.7, 3, 0, 1]], 'bags': [[76.1, 1], [114.8, 0]]}, [2434, 382956.8]], ['sampled case 2', {'season': 'winter', 'rows': [[232.3, 0, 3, 0], [166.7, 1, 2, 1], [113.6, 2, 0, 0], [181.7, 2, 1, 0]], 'bags': []}, [1497, 253117.5]], ['sampled case 3', {'season': 'winter', 'rows': [[190.7, 1, 2, 1], [134.2, 1, 1, 0]], 'bags': []}, [651, 108212.7]]], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 1, 1]], 'bags': [[300.0, 6]]}, [1472, 240300.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 2]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[132.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 92040.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 20]]}, [560, 156800.0]], ['sampled case 1', {'season': 'winter', 'rows': [[207.9, 3, 3, 2], [166.6, 2, 1, 1], [191.5, 2, 1, 3]], 'bags': [[191.7, 3]]}, 'ERR_ROW_1_SEATS'], ['sampled case 2', {'season': 'summer', 'rows': [[239.0, 3, 0, 3], [126.1, 3, 0, 0], [248.5, 0, 3, 0], [203.8, 0, 1, 0]], 'bags': []}, [1468, 285949.6]], ['sampled case 3', {'season': 'summer', 'rows': [[112.7, 1, 0, 2], [246.6, 1, 1, 0]], 'bags': []}, 'ERR_ROW_1_INFANTS']], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 2, 1]], 'bags': [[300.0, 7]]}, [1582, 263460.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 3]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[133.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 92610.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 30]]}, [840, 235200.0]], ['sampled case 1', {'season': 'winter', 'rows': [[247.7, 2, 3, 0]], 'bags': [[219.7, 7]]}, 'ERR_ROW_1_SEATS'], ['sampled case 2', {'season': 'winter', 'rows': [[186.6, 3, 0, 2]], 'bags': [[127.2, 7]]}, [781, 134092.2]], ['sampled case 3', {'season': 'winter', 'rows': [[112.7, 0, 3, 0], [159.8, 1, 0, 1], [131.3, 2, 1, 2], [112.7, 3, 0, 0]], 'bags': []}, [1518, 189135.3]]], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 1, 1]], 'bags': [[300.0, 8]]}, [1528, 257100.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 4]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[134.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 93180.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 40]]}, [1120, 313600.0]], ['sampled case 1', {'season': 'winter', 'rows': [[121.9, 2, 0, 0], [208.1, 0, 0, 0]], 'bags': [[285.3, 11]]}, [698, 135413.4]], ['sampled case 2', {'season': 'summer', 'rows': [[192.5, 1, 2, 1], [210.4, 0, 1, 0], [164.1, 3, 0, 3], [177.2, 1, 1, 1]], 'bags': []}, [1278, 227133.2]], ['sampled case 3', {'season': 'summer', 'rows': [[129.9, 2, 1, 0], [217.8, 2, 0, 1], [102.4, 0, 1, 0], [102.1, 2, 0, 0], [219.8, 2, 1, 2]], 'bags': []}, [1766, 291520.2]]], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 2, 1]], 'bags': [[300.0, 9]]}, [1638, 280260.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 5]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[135.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 93750.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 50]]}, [1400, 392000.0]], ['sampled case 1', {'season': 'summer', 'rows': [[127.4, 1, 0, 1], [239.5, 1, 2, 1], [187.1, 3, 3, 3]], 'bags': [[167.2, 12], [227.4, 2]]}, 'ERR_ROW_3_SEATS'], ['sampled case 2', {'season': 'summer', 'rows': [[134.7, 0, 2, 0], [113.2, 2, 1, 1], [126.4, 0, 0, 3], [248.9, 2, 1, 1], [227.0, 1, 1, 1]], 'bags': []}, 'ERR_ROW_3_INFANTS'], ['sampled case 3', {'season': 'summer', 'rows': [[227.7, 2, 0, 2], [101.0, 1, 2, 0], [158.6, 3, 0, 3], [211.0, 1, 0, 1]], 'bags': [[271.3, 10]]}, [1774, 328736.0]]]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(args), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)

Boundary fixture	Actual	Expected	Outcome
summer mixed cabin	`[1571, 253410.0]`	`[1526, 246660.0]`	Failed
winter family rows	`[928, 135420.0]`	`[958, 139470.0]`	Failed
row full of seats	`ERR_ROW_1_SEATS`	`ERR_ROW_1_SEATS`	Passed
two lap infants one adult	`ERR_ROW_2_INFANTS`	`ERR_ROW_2_INFANTS`	Passed
three adults three infants	`[641, 93435.0]`	`[626, 91470.0]`	Failed
empty cabin bags only	`[280, 78400.0]`	`[280, 78400.0]`	Passed
sampled case 1	`[2364, 372348.8]`	`[2434, 382956.8]`	Failed
sampled case 2	`[1442, 243271.0]`	`[1497, 253117.5]`	Failed
sampled case 3	`[626, 104010.2]`	`[651, 108212.7]`	Failed

SHA-256 / f3bf783506dddc0dcf64fd69a4046f959ddd94fd9a55b878743c04a0febb1f70

2 / The unsuccessful fix

Exit 1

"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    std = {'summer': (190, 87), 'winter': (195, 82)}
    aw, cw = std[x['season']]
    w = 0
    m = 0.0
    for i, (arm, ad, ch, inf) in enumerate(x['rows'], 1):
        if ad + ch > 3: return 'ERR_ROW_%d_SEATS' % i
        if inf > ad: return 'ERR_ROW_%d_INFANTS' % i
        rw = ad * aw + ch * cw
        w += rw
        m += rw * arm
    for arm, count in x['bags']:
        w += count * 28
        m += count * 28 * arm
    return [w, round(m, 1)]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 2, 1]], 'bags': [[300.0, 5]]}, [1526, 246660.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 1]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[131.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 91470.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 10]]}, [280, 78400.0]], ['sampled case 1', {'season': 'winter', 'rows': [[123.2, 3, 0, 2], [224.7, 2, 0, 1], [209.0, 3, 0, 3], [101.5, 0, 3, 0], [123.7, 3, 0, 1]], 'bags': [[76.1, 1], [114.8, 0]]}, [2434, 382956.8]], ['sampled case 2', {'season': 'winter', 'rows': [[232.3, 0, 3, 0], [166.7, 1, 2, 1], [113.6, 2, 0, 0], [181.7, 2, 1, 0]], 'bags': []}, [1497, 253117.5]], ['sampled case 3', {'season': 'winter', 'rows': [[190.7, 1, 2, 1], [134.2, 1, 1, 0]], 'bags': []}, [651, 108212.7]]], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 1, 1]], 'bags': [[300.0, 6]]}, [1472, 240300.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 2]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[132.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 92040.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 20]]}, [560, 156800.0]], ['sampled case 1', {'season': 'winter', 'rows': [[207.9, 3, 3, 2], [166.6, 2, 1, 1], [191.5, 2, 1, 3]], 'bags': [[191.7, 3]]}, 'ERR_ROW_1_SEATS'], ['sampled case 2', {'season': 'summer', 'rows': [[239.0, 3, 0, 3], [126.1, 3, 0, 0], [248.5, 0, 3, 0], [203.8, 0, 1, 0]], 'bags': []}, [1468, 285949.6]], ['sampled case 3', {'season': 'summer', 'rows': [[112.7, 1, 0, 2], [246.6, 1, 1, 0]], 'bags': []}, 'ERR_ROW_1_INFANTS']], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 2, 1]], 'bags': [[300.0, 7]]}, [1582, 263460.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 3]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[133.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 92610.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 30]]}, [840, 235200.0]], ['sampled case 1', {'season': 'winter', 'rows': [[247.7, 2, 3, 0]], 'bags': [[219.7, 7]]}, 'ERR_ROW_1_SEATS'], ['sampled case 2', {'season': 'winter', 'rows': [[186.6, 3, 0, 2]], 'bags': [[127.2, 7]]}, [781, 134092.2]], ['sampled case 3', {'season': 'winter', 'rows': [[112.7, 0, 3, 0], [159.8, 1, 0, 1], [131.3, 2, 1, 2], [112.7, 3, 0, 0]], 'bags': []}, [1518, 189135.3]]], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 1, 1]], 'bags': [[300.0, 8]]}, [1528, 257100.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 4]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[134.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 93180.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 40]]}, [1120, 313600.0]], ['sampled case 1', {'season': 'winter', 'rows': [[121.9, 2, 0, 0], [208.1, 0, 0, 0]], 'bags': [[285.3, 11]]}, [698, 135413.4]], ['sampled case 2', {'season': 'summer', 'rows': [[192.5, 1, 2, 1], [210.4, 0, 1, 0], [164.1, 3, 0, 3], [177.2, 1, 1, 1]], 'bags': []}, [1278, 227133.2]], ['sampled case 3', {'season': 'summer', 'rows': [[129.9, 2, 1, 0], [217.8, 2, 0, 1], [102.4, 0, 1, 0], [102.1, 2, 0, 0], [219.8, 2, 1, 2]], 'bags': []}, [1766, 291520.2]]], [['summer mixed cabin', {'season': 'summer', 'rows': [[120.0, 2, 1, 0], [150.0, 3, 0, 1], [180.0, 1, 2, 1]], 'bags': [[300.0, 9]]}, [1638, 280260.0]], ['winter family rows', {'season': 'winter', 'rows': [[120.0, 2, 1, 2], [150.0, 1, 2, 1]], 'bags': [[300.0, 3], [60.0, 1]]}, [958, 139470.0]], ['row full of seats', {'season': 'summer', 'rows': [[120.0, 2, 2, 0], [150.0, 1, 0, 0]], 'bags': []}, 'ERR_ROW_1_SEATS'], ['two lap infants one adult', {'season': 'winter', 'rows': [[120.0, 1, 1, 0], [150.0, 1, 1, 2]], 'bags': [[300.0, 5]]}, 'ERR_ROW_2_INFANTS'], ['three adults three infants', {'season': 'summer', 'rows': [[135.0, 3, 0, 3]], 'bags': [[300.0, 2]]}, [626, 93750.0]], ['empty cabin bags only', {'season': 'winter', 'rows': [], 'bags': [[280.0, 50]]}, [1400, 392000.0]], ['sampled case 1', {'season': 'summer', 'rows': [[127.4, 1, 0, 1], [239.5, 1, 2, 1], [187.1, 3, 3, 3]], 'bags': [[167.2, 12], [227.4, 2]]}, 'ERR_ROW_3_SEATS'], ['sampled case 2', {'season': 'summer', 'rows': [[134.7, 0, 2, 0], [113.2, 2, 1, 1], [126.4, 0, 0, 3], [248.9, 2, 1, 1], [227.0, 1, 1, 1]], 'bags': []}, 'ERR_ROW_3_INFANTS'], ['sampled case 3', {'season': 'summer', 'rows': [[227.7, 2, 0, 2], [101.0, 1, 2, 0], [158.6, 3, 0, 3], [211.0, 1, 0, 1]], 'bags': [[271.3, 10]]}, [1774, 328736.0]]]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(args), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)

Boundary fixture	Actual	Expected	Outcome
summer mixed cabin	`[1541, 249060.0]`	`[1526, 246660.0]`	Failed
winter family rows	`[943, 137370.0]`	`[958, 139470.0]`	Failed
row full of seats	`ERR_ROW_1_SEATS`	`ERR_ROW_1_SEATS`	Passed
two lap infants one adult	`ERR_ROW_2_INFANTS`	`ERR_ROW_2_INFANTS`	Passed
three adults three infants	`[626, 91470.0]`	`[626, 91470.0]`	Passed
empty cabin bags only	`[280, 78400.0]`	`[280, 78400.0]`	Passed
sampled case 1	`[2419, 381434.3]`	`[2434, 382956.8]`	Failed
sampled case 2	`[1467, 247057.5]`	`[1497, 253117.5]`	Failed
sampled case 3	`[636, 105634.7]`	`[651, 108212.7]`	Failed

SHA-256 / b61e4d7f0e0df6128b19ae038ee0a026f60516ac0b05a152da310a693e9838db

HELD IN THE MEMBER ARCHIVE

The verified repair and its recorded checks are member-only.

This mechanism has 9 recorded checks per implementation. The open-access tier publishes the failure and the unsuccessful fix; the repaired source that passes every check, and the observations that prove it, are available to members.

Every case sharing this mechanism uses the same contract and the same repair, so this one record is held back for all of them.

Member access is invitation-based. Sign in with your invited account to inspect the repair.

Verification & scope

A deterministic toy loading model with stipulated constants; it is not an approved aircraft flight manual procedure and makes no claim of regulatory conformance. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.

Observations recorded using Python 3.12.14 at 2026-09-29T14:47:39.547124+00:00.

Case digest / 5e3e11911bd66ca2596a89e2bcb56a4a90138fe1d13d75d6a8ac2102787250e0