#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
using namespace std;

bool checkKadomatsu(const vector<int>& a)
{
    if(a[0] == a[2])
        return false;
    return (a[0] < a[1] && a[2] < a[1]) || (a[0] > a[1] && a[2] > a[1]);
}

int main()
{
    vector<int> a(3);
    for(int i=0; i<3; ++i)
        cin >> a[i];

    if(checkKadomatsu(a)){
        cout << "INF" << endl;
        return 0;
    }

    int ans = 0;
    for(int p=1; p<=1000; ++p){
        vector<int> b(3);
        for(int i=0; i<3; ++i)
            b[i] = a[i] % p;
        if(checkKadomatsu(b))
            ++ ans;
    }
    cout << ans << endl;

    return 0;
}