a, b, c = map(int, input().split())

if a == b or b == c or a == c:
    print(0)

elif a < b > c or a > b < c:
    print('INF')

else:
    x = max(a, b, c)
    y = 0
    for i in range(1, x+1):
        if (a%i < b%i > c%i or a%i > b%i < c%i) and a%i != c%i:
            y += 1
    print(y)