def kado(a,b,c):
    if len(set([a,b,c])) <3:
        return False
    if a < b and b > c:
        return True
    if a > b and b < c:
        return True
    return False
    
a, b, c = map(int, input().split())
if kado(a, b, c):
    print("INF")
    exit()

ans = 0
for p in range(1, 1200):
    ans += kado(a%p, b%p, c%p)
print(ans)