program Echo
/******************************************************************************
 * Description:  Echos the standard input to the standard output
 *               
 * Input:        Any sequence of integers ending with 0000
 * Output:       A copy of that sequence (without the 0000)
 ******************************************************************************/

// Loop
10: 81FF   read R[1]                     
11: C114   if (R[1] == 0) goto 14        
12: 91FF   write R[1]                    
13: C010   goto 10                       

// Halt
14: 0000   halt