aoc2017day01-2
123456789101112
import sys
def doit(input):
q = list(map(int, input.strip()))
sum = 0
for i in range(len(q)):
if q[i] == q[(i+int(len(q)/2))%len(q)]:
sum += q[i]
return "%d" % sum
input = sys.stdin.read()
print(doit(input))
Python
INFO