var4 2k16 22/2/2022 sb2

#include <iostream>
#include <cstring>
using namespace std;
#define SIZE 20
char words[SIZE][SIZE];
int n, k;

int main() {
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> words[i];
    }
    cin >> k;

    for (int i = 0; i < n; i++) {
        if (strlen(words[i]) == k) {
            cout << words[i] << ' ';
        }
    }

    for (int i = 0; i < n; i++) {
        if (strlen(words[i]) != k) {
            cout << words[i] << ' ';
        }
    }

    return 0;
}