#include <stdio.h>
#include <ctype.h>
#include <reg51.h>

void main (void)
{
  unsigned char zeichen;

  SCON = 0x5A;             /* initialize UART to mode 1   */
  PCON |= 0x80;            /* set to 9600 Baud @ 12 MHz   */


  while (1)
  {
    zeichen=getc();
    switch(toupper(zeichen))
    {
    case 'A':
      puts("\nAnton\n");
      break;
    case 'B':
      puts("\nBerta\n");
      break;
    case '\\':
      puts("\nEnde\n");
      break;
    }
  }
}