#include <iostream>
using namespace std;
int main()
{
int test[3][3]; //declaration of 2D array
test[0][0]=5; //initialization
test[0][1]=10;
test[1][1]=15;
test[1][2]=20;
test[2][0]=30;
test[2][2]=10;
//traversal
for(int i = 0; i < 3; ++i)
{
for(int j = 0; j < 3; ++j)
{
cout<< test[i][j]<<" ";
}
cout<<"\n"; //new line at each row
}
return 0;
}