package com.javarush.task.task07.task0720;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import static java.lang.Integer.parseInt;
/*
Перестановочка подоспела
*/
public class Solution {
public static void main(String[] args) throws IOException {
ArrayList<String> list = new ArrayList<String>();
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
//System.out.println("Введите N");
int n = Integer.parseInt(reader.readLine());
//System.out.println("Введите M");
int m = Integer.parseInt(reader.readLine());
for (int i = 0; i < n; i++){
String s = reader.readLine();
list.add(s);
}
//System.out.println(list);
for (int i = 0; i < m; i++){
String temporary_variable = list.get(m + i);
list.set(m + i,list.get(i));list.set(i,temporary_variable);
//System.out.println(list);
}
for (int i = 0; i < list.size(); i++){
System.out.println(list.get(i));
}
}
}