A, B, C = map(int, input().split())

if (A < B > C or A > B < C) and A != C:
    print('INF')

else:
    c = 0
    for a in range(1, max(A+1, B+1, C+1)):
        if (A%a < B%a > C%a or A%a > B%a < C%a) and A%a != C%a:
            c += 1
    print(c)