/*
入力 validation。WA なら OK。
*/

#include "testlib.h"
#include<bits/stdc++.h>
using namespace std;

using ll = long long;
const ll Nmin = 1, Nmax = 30000;
const ll Mmin = 1, Mmax = 30000;
const ll Vmin = 1, Vmax = 30000;

int main(){
	registerValidation();
	ll N = inf.readLong(Nmin,Nmax);
	inf.readSpace();
	ll M = inf.readLong(Mmin,Mmax);
	inf.readEoln();
	ll a = 0, b = 0;
	for (int i=0; i<N; i++){
		ll at = inf.readLong(Vmin,Vmax);
		assert (a < at);
		a = at;
		if(i<N-1) inf.readSpace();
		if(i==N-1) inf.readEoln();
	}
	for (int i=0; i<M; i++){
		ll bt = inf.readLong(Vmin,Vmax);
		assert (b < bt);
		b = bt;
		if(i<M-1) inf.readSpace();
		if(i==M-1) inf.readEoln();
	}
	inf.readEof();
	return 0;
}