-- yukicoder My Practice
-- author: Leonardone @ NEETSDKASU

function isKadomatsuRetsu(b1, b2, b3)
	return b1 ~= b3 and ((b2 < b1 and b2 < b3) or (b2 > b1 and b2 > b3))
end

gi = io.read():gmatch('%d+')

a1 = gi()
a2 = gi()
a3 = gi()

if isKadomatsuRetsu(a1, a2, a3) then
	print('INF')
else
	c = 0
	for p = 1, math.max(a1, a2, a3) do
		if isKadomatsuRetsu(a1 % p, a2 % p, a3 % p) then
			c = c + 1
		end
	end
	print(c)
end