Square pattern using Numeric digits in line

Code:

#include<iostream>
using namespace std;
void main()
{
//Square pattern using Numeric digits in line
int square;
cout<<"Enter The Size of Square = "; // size
cin>>square;
for(int i = 1;i<=square;i++) // outer loop
{
for(int j = 1;j<=square;j++) //inner loop
{
cout<<j<<" "; // value that is output
}
cout<<endl;//new line for next line output
}

}

Output