import java.util.*;
import java.lang.*;
import java.io.*;

class U415 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n, m;
        n = scanner.nextInt();
        m = scanner.nextInt();
        double[] A = new double[n];
        double[] B = new double[m];
        double[] C = new double[n + m];
        for (int i = 0; i < n; i++) {
            A[i] = scanner.nextDouble();
        }
        for (int i = 0; i < m; i++) {
            B[i] = scanner.nextDouble();
        }
        for (int i = 0; i < n + m; i++){
            if (i < n) {
                C [i] = A[i];
            }
            else {
                C [i] = B[i - n];
            }
        }
        System.out.println(Arrays.toString(C));
    }
}