#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream> 
#include<map>
#include <iomanip>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
using namespace std;
#define MAX_MOD 1000000007
#define REP(i,n) for(long long i = 0;i < n;++i)
#define LONG_INF 100000000000000
int main() {
	int a[3];
	REP(i, 3) {
		cin >> a[i];
	}
	if (!((a[0] != a[1] && a[1] != a[2]&&a[0] != a[2])&& !(a[0] < a[1] && a[1] < a[2]) || (a[0] > a[1] && a[1] > a[2]))) {
		int cnt = 0;
		for (int i = 2;i < 2000;++i) {
			int copy[3] = {};
			REP(q,3) {
				copy[q] = a[q] % i;
			}
			if ((copy[0] != copy[2]&&copy[0] != copy[1] && copy[1] != copy[2]) && (!((copy[0] < copy[1] && copy[1] < copy[2]) || (copy[0] > copy[1] && copy[1] > copy[2])))) cnt++;
		}
		cout << cnt << endl;
		return 0;
	}
	else cout << "INF" << endl;
	return 0;
}