#include <iostream>
using namespace std;
int main()
{
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
	int a, i, n, m, z;
	cin >> n >> m;
	int* arr1 = new int[n];
	int* arr2 = new int[m];
	for (i = 0; i < n; i++)
		cin >> arr1[i];
	for (i = 0; i < m; i++)
		cin >> arr2[i];
	if (n > m)
		z = n + 1;
	else
		z = m + 1;
	int* arr3 = new int[z];
	arr3[0] = arr1[n - 1];
	i = 1;
	while (n - i > 0) {
		arr3[i] = arr1[n - i - 1];
		i = i + 1;
	}
	arr3[0] += arr2[m - 1];
	arr3[1] += arr3[0] / 10;
	arr3[0] = arr3[0] % 10;
	i = 1;
	while (m - i > 0) {
		arr3[i] += arr2[m - i - 1];
		arr3[i + 1] += arr3[i] / 10;
		arr3[i] = arr3[i] % 10;
		i = i + 1;
	}
	if (arr3[z - 1] > 0)
		for (i = z - 1; i >= 0; i--)
			cout << arr3[i];
	else
		for (i = z - 2; i >= 0; i--)
			cout << arr3[i];
}