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

/* Filter for UNIX->DOS text file conversion */

typedef char *str;

main() {
  FILE *f=stdin, *g=stdout;
  int c;
  while( c=getc(f), c!=EOF) {
    if (c == '\n') putc('\r',g);
    putc(c,g);
  }
  return 0;
}