#yuki-1352
from math import gcd
A, B, C = sorted(map(int, input().split()))
b = A//gcd(A, B)
c = A//gcd(A, C)
if gcd(A, gcd(B, C)) > 1:
    print('INF')
    exit()

#mod Aで頑張る
mex = [float('inf')]*A
mex[0] = 0
for i in range(b):
    for j in range(c):
        R = i*B+j*C
        r = R%A
        mex[r] = min(R, mex[r])
ans = [m//A for m in mex]
print(sum(ans))