penjumlahan array

#include <iostream>
using namespace std;

int main()
{
    int data1[20][20], data2[20][20], a, b,data3[20][20];
    cout<<"masukkan jumlah baris = ";cin>>a;
    cout<<"masukkan jujmlah kolom = ";cin>>b;
    cout<<"masukkan data 1"<<endl;
     for(int x=0;x<a;x++)
     {
        for(int y=0;y<b;y++)
        {
            cout<<"data1 ["<<x<<"]["<<y<<"] =";cin>>data1[x][y];
        }
     }
     cout<<"masukkan data 2 "<<endl;
     for(int x=0;x<a;x++)
     {
        for(int y=0;y<b;y++)
        {
            cout<<"data2 ["<<x<<"]["<<y<<"] =";cin>>data2[x][y];
        }
    }

    for(int x=0;x<a;x++)
     {
        cout<<"|";
        for(int y=0;y<b;y++)
        {
            cout<<data1[x][y]<<" ";
        }
        cout<<"| + |";
        for(int y=0;y<b;y++)
        {
            cout<<data2[x][y]<<" ";
        }
        cout<<"|"<<endl;

     }

     for(int x=0;x<a;x++)
     {
        for(int y=0;y<b;y++)
        {
            data3[x][y]=data1[x][y] + data2[x][y];
        }
    }
    cout<<"hasil ="<<endl;
    for(int x=0;x<a;x++)
     {
        cout<<"|";
        for(int y=0;y<b;y++)
        {
            cout<<data3[x][y]<<" ";
        }
        cout<<"|"<<endl;
    }
}