#include <bits/stdc++.h>
using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    string s;
    cin >> s;
    int i=s.size();
            if(s[i-3]=='.'&&s[i-2]=='p'&&s[i-1]=='y')
        cout << s << " la tep ma nguon Python";
    else cout << s << " khong la tep ma nguon Python";
}

#include<bits/stdc++.h>
#define ll long long
#define ios ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#pragma GCC optimize("O3","unroll-loops")
#pragma GCC optimize("Ofast")
using namespace std;
int main() {
    string a;
    cin>>a;
    if(a.size()>=3&&a.substr(a.size()-3)==".py")
        cout<<a<<" la tep ma nguon Python";
    else
        cout<<a<<" khong la tep ma nguon Python";
    return 0;
}
/*

*   *  *   *    *     *   *       *****    *     ****         ***    ***   ****   *****
**  *  *   *   * *    **  *         *     * *    *   *       *   *  *   *  *   *  *
* * *  *   *  *   *   * * *         *    *   *   *   *       *      *   *  *   *  *
*  **  *****  *****   *  **         *    *****   ****        *      *   *  *   *  ****
*   *  *   *  *   *   *   *         *    *   *   *           *      *   *  *   *  *
*   *  *   *  *   *   *   *         *    *   *   *           *   *  *   *  *   *  *
*   *  *   *  *   *   *   *         *    *   *   *            ***    ***   ****   *****

*/

Cách bình thường:

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int main() {
    string a;
    cin>>a;
    int n=a.size();
    if(n>=3&&a[n-3]=='.'&&a[n-2]=='p'&&a[n - 1]=='y')
        cout<<a<<" la tep ma nguon Python";
    else
        cout<<a<<" khong la tep ma nguon Python";
    return 0;
}