// NOTE: it is recommended to use this even if you don't understand the following code.

#include <fstream>
#include <iostream>
#include <string>
#include <vector>

using namespace std;

int main() {
    // uncomment the two following lines if you want to read/write from files
    // ifstream cin("input.txt");
    // ofstream cout("output.txt");

    int N, A, B;
    cin >> N >> A >> B;
     if(A == B){
        cout << "Tul konnyu!";
        return 0;
    }
    if(A < B){
        int x;
        x = B - A + 1;
        if(x < 5){
            cout << "Tul konnyu!";
            return 0;
        }
        else{
            cout << x;
            return 0;
        }

    }
    else {
        int x;
        x = (N - A) + B + 1;
        if(x < 5){
            cout << "Tul konnyu!";
            return 0;
        }
        else{
            cout << x;
            return 0;
        }
    }

    return 0;
}