https://www.acmicpc.net/problem/11728
import sys
N, M = map(int, sys.stdin.readline().rstrip().split())
A = list(map(int, sys.stdin.readline().rstrip().split()))
B = list(map(int, sys.stdin.readline().rstrip().split()))
tot = A + B
tot.sort()
print(' '.join(map(str, tot)))