#include <bits/stdc++.h>
using namespace std;
bool solve(int x, int y, int z) {
	return ((x < y && y > z) || (x > y && y < z)) && (x != z);
}
int a, b, c;
int main() {
	cin >> a >> b >> c;
	if(solve(a, b, c)) cout << "INF" << endl;
	else {
		int ret = 0;
		for(int i = 1; i <= 1000; i++) {
			if(solve(a % i, b % i, c % i)) ret++;
		}
		cout << ret << endl;
	}
}