#include <iostream>
#include <algorithm>
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}

bool check(int a, int b, int c) {
    if(a!=c&&((a>b&&c>b)||(a<b&&c<b))) return true;
    return false;
}
int main() {
    fastcin;
    int a1, a2, a3;
    cin >> a1 >> a2 >> a3;
    if(check(a1, a2, a3)) printf("INF\n");
    else {
        int m = max(a1, a3)+1;
        int ans = 0;
        for(int i=2; i<m; ++i) if(check(a1%i, a2%i, a3%i)) ans++;
        printf("%d\n", ans);
    }
    return 0;
}