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

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

// typedef char *str;

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