a_list = list(map(int,input().split()))

kadomatsu = 0
count = 0

def judge_kadomatsu(list_0):
    flag = 0
    if (list_0[0] - list_0[1] != 0) and (list_0[1] - list_0[2] != 0) and (list_0[2] - list_0[0] != 0):
        if list_0.index(min(list_0)) == 1 or list_0.index(max(list_0)) == 1:
            flag = 1
            
    return flag
        
kadomatsu = judge_kadomatsu(a_list)

if kadomatsu == 0:
    for i in range(1000):
        devisor = i + 1
        cur_list = [a_list[0] % devisor, a_list[1] % devisor, a_list[2] % devisor]
        
        if judge_kadomatsu(cur_list) == 1:
            count += 1
            
if kadomatsu == 1:
    print('INF')
else:
    print(count)