A = [int(i) for i in input().split()]
ans = 0
for i in range(1,max(A) + 1):
	B = [A[0] % i,A[1] % i,A[2] % i]
	if len(set(B)) == 3 and (B[1] == max(B) or B[1] == min(B)):
		ans += 1
if len(set(A)) == 3 and (A[1] == max(A) or A[1] == min(A)):
	ans = 'INF'
print (ans)