#include <stdio.h>
#include <unistd.h>
#include <string.h>

int 
input (char *buf)
{
    char temp1[10], temp2[2];
    if (isatty(0))
	fprintf (stdout,"> ");
    if(!fgets(buf,1024,stdin))
	return 0;
    if (sscanf (buf, "%5s%1s",temp1,temp2)==1 &&
        strcmp (temp1,"end")==0) return 0;
    return 1;
}