day 13 part 1

l=[x.splitlines() for x in open("input").read().split("\n\n")]
def refl(p):
    for i in range(1, len(p)):
        if all(x==y for x,y in zip(p[:i][::-1],p[i:])):
            return i
    return 0

print(sum(refl(x)*100+refl(list(zip(*x))) for x in l))