#include <bits/stdc++.h>
using namespace std;
string str[500005];
int main() {
  int n;
  cin >> n;
  for (int i = 0; i < n; i++) cin >> str[i];
  for (int i = n - 2; i >= 0; i--) {
    if (str[i] > str[i + 1]) {
      string temp;
      for (int j = 0; j < str[i].length(); j++) {
        if (str[i + 1].length() < j || str[i][j] > str[i + 1][j]) break;
        temp += str[i][j];
      }
      str[i] = temp;
    }
  }
  for (int i = 0; i < n; i++) cout << str[i] << endl;
  return 0;
}
