#include <iostream>
#include <algorithm>
using namespace std;
bool p_check(int p0,int p1,int p2) {
	if (p0 == p1 || p1 == p2 || p2 == p0) { return false; }
	if (p1 > p0 && p1 > p2) { return true; }
	if (p1 < p0 && p1 < p2) { return true; }
	return false;
}
int main() {
	bool p_t = false;
	int ans = 0;
	int p_max = 0;
	int p[3];
	for (int i = 0; i < 3;i++) {
		cin >> p[i];
		p_max = max(p[i], p_max);
	}
	p_t = p_check(p[0],p[1],p[2]);
	if (p_t == true) { cout << "INF" << endl; return 0; }
	for (int i = 3; i <= p_max;i++) {
		p_t = p_check(p[0] % i, p[1] % i, p[2] % i);
		if (p_t == true) { ans++; }
	}
	cout << ans << endl;
	return 0;
}