def f(b):
    return 1 if len(set(b))>2 else 0
    
def g(b):
    return b[1] < min(b[0], b[2]) or b[1] > max(b[0], b[2])
    
def h(b):
    if m(b): return 'INF'
    return sum(1 for x in range(1, max(b)+1) if  m([b[0]%x, b[1]%x, b[2]%x]))
    
    
def m(b):
    return f(b) and g(b)
    
a = list(map(int, input().split()))
print(h(a))