/*   This  program reads a length in yards from the keyboard, converts 
     the  length  to  feet and inches, and writes the converted length 
     to  the  video  display.  It  is  assumed  that  the  length is a 
     nonnegative  integer.  The  program  terminates  when  a negative 
     integer is entered.                                           */

#include <stdio.h>

main()
{
     int yard, foot, inch;
     
     printf( "Enter next length " );
     scanf( "%d", &yard );
     
     while ( yard >= 0 ) {
          foot = 3 * yard;
          inch = 36 * yard;
          printf( "\n%d yd =\n", yard );
          printf( "%d ft\n", foot );
          printf( "%d in\n", inch );
          printf( "Enter next length " );
          scanf( "%d", &yard );
     }
     
     printf( "*** END OF PROGRAM ***\n" );
}