#include <bits/stdc++.h>
using namespace std;
bool isKadomatsu(int a,int b,int c){
    if(a == c)return false;
    if(a>b && b<c)return true;
    if(a<b && b>c)return true;
    return false;
}
int main() {
    int A,B,C;
    cin >> A >> B >> C;
    if(isKadomatsu(A,B,C)){
        cout << "INF" <<endl;
        return 0;
    }
    int cnt = 0;
    for(int i = 1; i <= 1000; i++)
        if(isKadomatsu(A % i,B % i,C % i))cnt++;
    cout << cnt << endl;
    return 0;
}