#include <bits/stdc++.h>

int ri() {
	int n;
	scanf("%d", &n);
	return n;
}
std::vector<std::pair<int, int> > hen[400][400];
int ord[400][400];
bool used[400][400];
int head = 0;
void dfs(int x, int y) {
	for (auto &j : hen[x][y]) {
		if (used[j.first][j.second]) continue;
		used[j.first][j.second] = true;
		dfs(j.first, j.second);
	}
	ord[x][y] = head++;
}

int main() {
	int h = ri(), w = ri();
	int a[h], b[w];
	for (int i = 0; i < h; i++) a[i] = ri() - 1;
	for (int i = 0; i < w; i++) b[i] = ri() - 1;
	std::sort(a, a + h, std::greater<>());
	std::sort(b, b + w, std::greater<>());
	for (int i = 0; i < h; i++) {
		for (int j = 0; j < a[i]; j++) hen[i][j].push_back({i, j + 1});
		for (int j = a[i]; j + 1 < w; j++) hen[i][j + 1].push_back({i, j});
	}
	for (int i = 0; i < w; i++) {
		for (int j = 0; j < b[i]; j++) hen[j][i].push_back({j + 1, i});
		for (int j = b[i]; j + 1 < h; j++) hen[j + 1][i].push_back({j, i});
	}
	for (int i = 0; i < h; i++) {
		for (int j = 0; j < w; j++) {
			if (!used[i][j]) {
				used[i][j] = true;
				dfs(i, j);
			}
			std::cerr << h * w - ord[i][j] << " ";
		}
		std::cerr << std::endl;
	}
	
	return 0;
}