#include <string>
#include <vector>

using namespace std;

vector<vector<int>> solution(vector<vector<int>> arr1, vector<vector<int>> arr2) {
    vector<vector<int>> answer;
    vector<int> sumArr;
    int pushNum;
    
    for(int i=0;i<arr1.size();i++){ // 행
        for(int j=0;j<arr1[i].size();j++){ // 열
            pushNum = arr1[i][j] + arr2[i][j];
            if(pushNum < 500){
                sumArr.push_back(pushNum);
            }
            
        }
        answer.push_back(sumArr);
        sumArr.clear();
    }
    return answer;
}