#include <stdio.h>

main()
{
      char karakter;
      int secim, hexdecimal;
      
      printf("Karakter-Hexdecimal
Hexdecimal-Karakter
");
      printf("Seciminiz: ");
      scanf("%d",&secim);
      
      if(secim==1){
      printf("Karakter Gir: ");
      scanf("%c",&karakter);
      printf("Hexdecimal Deger: %x",karakter);
      }

      if(secim==2){
      printf("HexDecimal Gir: ");
      scanf("%x",&hexdecimal);
      printf("Karakter Deger: %c",hexdecimal);
      }
}