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

char *word2(char *s1)
{
  char *x;

  x = strchr(s1, ' ');
  if (x == NULL) return x;
  while (*x == ' ') x++;
  if (*x == '\0') return NULL;
  return x;
}

main()
{
  char s1[100];
  char *x;

  while(gets(s1) != NULL) {
    for (x = s1; x != NULL; x = word2(x)) {
      printf("%s\n", x);
    }
  }
}