a,b,c = map(int, raw_input().split())
if a == b or b == c or c == a:
    print 0
elif (b > a and b > c) or (b < a and b < c):
    print 'INF'
else:
    m = max(a,max(b,c))
    ct = 0
    for d in range(3,m+1):
        x = a % d
        y = b % d
        z = c % d
        if (y > x and y > z and x != z) or (y < x and y < z and x != z):
            ct += 1
    print ct