#include <iostream>
using namespace std;

char exc (char x) ;

void main() {
    char a = 'A';  // 65      a= 97

     char res;
      for (int i = 0 ; i < 26 ; i++)
        cout << char(a+i) << " " << exc(a+i) << " " << endl ;
     cout << endl;
}

char exc( char x) {

      return x + 32;


}