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

int main()
{
  int flagNewLine;
  int flagReturn;
  int c;

  while ((c=getchar())!=EOF)
    {
      if ((c=='\n'))
	{
	  if (flagReturn)
	    {
	      flagReturn=0;
	      continue;
	    }
	  else
	    {
	      putchar('\n');
	      flagNewLine=1;
	      continue;
	    }
	}
      else if ((c=='\015'))
	{
	  if (flagNewLine)
	    {
	      flagNewLine=0;
	      continue;
	    }
	  else
	    {
	      putchar('\n');
	      flagReturn=1;
	      continue;
	    }
	}
      putchar(c);
      flagNewLine=0;
      flagReturn=0;
    }
  exit(0);
  return 0;
}