Задание 27 № 33106 ЕГЭ по информатике

s = open('inf_22_10_20_27a (1).txt', 'r').readlines()[1:-1]
sum = 0
raz1, raz2 = [], []
for i in range(len(s)):
    a = int(s[i].split()[0])
    b = int(s[i].split()[1])
    sum += min(a, b)
    if abs(a - b) % 3 == 1:
        raz1.append(abs(a - b))
    if abs(a - b) % 3 == 2:
        raz2.append(abs(a - b))
raz1.sort()
raz2.sort()
print(raz1, raz2)
if sum % 3 == 0:
    print(sum)
elif sum % 3 == 1:
    print(min(sum + raz2[0], sum + raz1[0] + raz1[1]))
elif sum % 3 == 2:
    print(min(sum + raz1[0], sum + raz2[0] + raz2[1]))

s = open('inf_22_10_20_27b.txt', 'r').readlines()[1:] # тут ошибка была 
sum = 0
raz11 = raz12 = raz21 = raz22 = float('inf')
for i in range(len(s)):
    a, b = map(int, s[i].split())
    sum += min(a, b)
    ab = abs(a-b)
    if ab % 3 == 1:
        if ab<raz11:
            raz12, raz11 = raz11, ab
        elif ab<raz12:
            raz12 = ab
    elif ab % 3 == 2:
        if ab<raz21:
            raz22, raz21 = raz21, ab
        elif ab<raz22:
            raz22 = ab
#raz1.sort()
#raz2.sort()
print(raz11, raz12, '\n', raz21, raz22)
print(sum)
if sum % 3 == 0:
    print(sum)
elif sum % 3 == 1:
    print(sum + min(raz21, raz11 + raz12))
elif sum % 3 == 2:
    print(sum + min(raz11, raz21 + raz22))

s = open('inf_22_10_20_27a.txt', 'r').readlines()[1:]