[백준] 2738번 행렬 덧셈 (bronze 5

import java.io.*;
import java.util.*;
public class Main{
    public static void main(String[] args) throws IOException{
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(System.out));
        StringTokenizer st=new StringTokenizer(br.readLine());

        int n=Integer.valueOf(st.nextToken());
        int m=Integer.valueOf(st.nextToken());

        int[][] num=new int[n][m];
        for(int i=0; i<n; i++){
            st=new StringTokenizer(br.readLine());
            for(int j=0; j<m; j++){
                num[i][j]=Integer.valueOf(st.nextToken());
            }
        }
        for(int i=0; i<n; i++){
            st=new StringTokenizer(br.readLine());
            for(int j=0; j<m; j++){
                num[i][j]+=Integer.valueOf(st.nextToken());
                bw.write(num[i][j]+" ");
            }
            bw.write("\n");
        }
        bw.flush();
    }
}