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)):
        X = A % a
        Y = B % a
        Z = C % a
        if (X < Y > Z or X > Y < Z) and X != Z:
            c += 1
    print(c)