a=list(map(int,input().split()))
if max(a)==a[1] or min(a)==a[1]:
    print("INF")
    exit()
cnt=0
for i in range(1,max(a)+1):
    b=[0]*3
    b[0],b[1],b[2]=a[0]%i,a[1]%i,a[2]%i
    if max(b)==b[1] or min(b)==b[1]:
        cnt+=1
print(cnt)