include<bits/stdc++.h>

using namespace std; int main() { iosbase::syncwith_stdio(false); cin.tie(NULL); int m, n; cin >> m >> n; vector<int>a(m + n); for(int i = 0; i < n + m; i++) cin >> a[i]; sort(a.begin(), a.end()); for(int d : a) cout << d << " "; return 0; }