/* removes trailing blanks and tabs from a line, and deletes entirely
 * blank lines.
 */

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

#define MAXLINE 1000

enum { IN, OUT };

/* omits trailing space and entirely blank lines */
void putline(char line[]) {
     int i, j, flag;
     char buf[MAXLINE];

     flag = 0;
     for (i = j = 0; line[i] != '\0'; i++) {
	  if (!isspace(line[i])) {
	       flag = 1;
	       while (j > 0)
		    putchar(buf[--j]);
	       putchar(line[i]);
	  } else
	       buf[j++] = line[i];
     }

     if (flag == 1) putchar('\n');
}
     
int main(void) {
     char line[MAXLINE];
     int c, i;

     i = 0;
     while ((c=getchar()) != EOF) {
	  if (c != '\n' && i < MAXLINE-1)
	       line[i++] = c;
	  else {
	       line[i] = '\0';
	       putline(line);
	       i = 0;
	  }
     }

     return 0;
}