#include "bits/stdc++.h"
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}
#define rep(i, a, b) for(int i = a; i < b; i++)
#define rrep(i, a, b) for(int i = a; i >= b; i--)
#define fore(i, a) for(auto &i:a)
#define print(x) cout << x << "\n"
#define SORT(a, n) sort(a, a+n);
#define REVERSE(a,n) reverse(a,a+n);
#define VSORT(v) sort(v.begin(), v.end());
#define VREVERSE(v) reverse(v.begin(), v.end());
#define MOD 1000000007
#define yes "YES"
#define no "NO"
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;

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)) print("INF");
    else {
        int m = max(a1, a3)+1;
        int ans = 0;
        rep(i, 2, m) if(check(a1%i, a2%i, a3%i)) ans++;
        print(ans);
    }
    return 0;
}