#include <bits/stdc++.h>
using namespace std;
int a, b, c;
bool ok(int mod) {
	int x = a % mod;
	int y = b % mod;
	int z = c % mod;
	if(x == y || y == z || z == x) {
		return false;
	}
	if(min({x, y, z}) == y || max({x, y, z}) == y) {
		return true;
	} else {
		return false;
	}
}
int main() {
	ios::sync_with_stdio(false);
	cin.tie(0); 

	cin >> a >> b >> c;
	if(a == b || b == c || c == a) {
		cout << 0 << endl;
		return 0;
	}
	if(min({a, b, c}) == b || max({a, b, c}) == b) {
		cout << "INF" << endl;
		return 0;
	}
	int ans = 0;
	for(int i = 1; i <= 1000; i++) {
		if(ok(i)) ans++;
	}
	cout << ans << endl;
	return 0;
}