#include <stdio.h>
#include <stdlib.h>
#include <dos.h>

void main( int argc, char *argv[] )
  {
    int delay;

    if( argc <= 1 ) exit( EXIT_FAILURE );
    delay = atoi( argv[1] );
    printf( "I am a child going to sleep "
            "for %d seconds\n", delay );
    sleep( delay );
    printf( "I am a child awakening\n" );
    exit( 123 );

  }