# include <iostream>

using namespace std;

int main ()
{

	for(int row=0;row<7;row++)
	{
	//Pad leading blanks in a row using a loop like this:
	for(int column=1;column<(7-row);column++){
	cout << "   ";
	}
	 
	//Print left half of the row for numbers 1, 2, 4, up to 2^row using a look like this:
	for(int column=0;column<row;column++){
	cout << "    " << pow(2, column);
	}
	 
	//Print the right half of the row for numbers 2^row-1, 2^row-2, ...., 1; column >=0; col--)
	for (int column=row-1; column >=0; column--){
	cout << "    " << pow (2, column);
	}
	//Start a new line
	cout << endl;


	return 0;
}