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- #счастливый билет назывется сумма первых трех 13 сумма вторых
- #трех 13 количство таких блетов
- n = int(input('количество билетов: '))
- l = 0
- for i in range(0,n):
- a = int(input('номер билета: '))
- j = 0
- sum = 0
- sum2 = 0
- while a > 0:
- j = j + 1
- k = a % 10
- a = a// 10
- if j <= 3:
- sum = sum + k
- if j > 3:
- sum2 = sum2 + k
- if sum2 == sum and ((sum2 == 13) or (sum == 13)) :
- l = l + 1
- print(l)
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