def isok(a,b,c):
    if a==b or b==c or c==a:
        return 0
    if a<b and b>c:
        return 1
    if a>b and b<c:
        return 1
    return 0
a,b,c=map(int,input().split())
res=0
for i in range(1,100000):
    res+=isok(a%i,b%i,c%i)
if res>10000:
    print('INF')
else :
    print(res)