import java.util.*; 

public class JoinSortedArrays { 
        public static void main(String[] args) { 
                Scanner scanner = new Scanner(System.in); 

                int n = scanner.nextInt();
                int[] arr1 = new int[n];
                for (int i = 0; i < n; i++) {
                arr1[i] = scanner.nextInt();
                }

                int m = scanner.nextInt();
                int[] arr2 = new int[m];
                for (int i = 0; i < m; i++) { 
                arr2[i] = scanner.nextInt();
                } 
                List<Integer> mergedList = new ArrayList<>();
                for (int num : arr1) mergedList.add(num);
                for (int num : arr2) mergedList.add(num);

                Collections.sort(mergedList); 

                for (int num : mergedList) {
                System.out.print(num + " "); 
                } 
          } 
}