#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <set>
#include <queue>
#include <string>
#include <iomanip>
using namespace std;

#define ll long long int
#define tiii tuple<int,int,int>
#define pii pair<int,int>

int main()
{
    int a,b,c;
    cin >> a >>b>>c;
    if(b > a && b > c && a != c)
    {
        cout << "INF" << endl;
        return 0;
    }
    if(b < a && b < c && a != c)
    {
        cout << "INF" << endl;
        return 0;
    }
    int sum = 0;
    for(int i = 1;i < 1002;i++)
    {
        int ma = a % i;
        int mb = b % i;
        int mc = c % i;
        if(mb > ma && mb > mc && ma != mc)
        {
            sum++;
        }
        else if(mb < ma && mb < mc && ma != mc)
        {
            sum++;
        }
    }
    cout << sum << endl;
    return 0;
}