#include<iostream>
using namespace std;
int main()
{
    int a;
    cin >> a;
    if (a < 8)
    {
        cout << "You are too young！";
    }
    else if (a >= 8 && a <= 12)
    {
        cout << "Welcome to Junior Class！";
    }
    else if (a >= 13 && a <= 18)
    {
        cout << "Welcome to Senior Class！";
    }
    else
    {
        cout << "You are too old！";
    }
    return 0;
}