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

int main() {
  // Allocate initial array of char *'s to hold strings.
  int n = 1;  // size of array
  char ** strings = (char **) malloc(n * sizeof(char *));

  int nstrings = 0;  // number of strings read
  char buf[128];
  while (scanf("%127s", buf) != EOF) {
    // Is there space in strings for another string?
    if (nstrings == n) {
      // No, so double size of strings.
      n *= 2;
      strings = realloc(strings, n * sizeof(char *));
    }
    // Allocate space to hold string permanently.
    strings[nstrings] = (char *) malloc(strlen(buf) + 1);
    // Copy string from buffer to its space.
    strcpy(strings[nstrings], buf);
    // Increment the number of strings read.
    ++nstrings;
  }

  // Do something with strings.  In this case, print.
  int i;
  for (i = 0; i < nstrings; ++i)
    printf("%s\n", strings[i]);

  // Free allocated memory.
  for (i = 0; i < nstrings; ++i)
    free(strings[i]);
  free(strings);

  return 0;
}