#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{

    for (char bet = 'A'; bet <= 'Z'; bet++)
      {  cout << bet << endl; }
      cout << "\n\n\n";
    for (char bet = 'Z'; bet >= 'A'; bet--)
      {  cout << bet << endl; }
    
    system("PAUSE");
    return 0;
}