#include <iostream>
#include <iomanip>   //for the iomanipulator setw
#include <cstdlib>
using namespace std;

int main()
{
	//Start with a 1 all the way to the right, in bit poistion 0.
	int mask {0x1};   //binary 00000000 00000000 00000000 00000001

	/*
	and keep doubling it by shifting it farther and farther left:
	00000000 00000000 00000000 00000001
	00000000 00000000 00000000 00000010
	00000000 00000000 00000000 00000100
	00000000 00000000 00000000 00001000
	etc.
	*/

	for (int i {0}; i < 31; ++i) {   //i is the bit position
		cout << setw(2) << i << "  " << setw(10) << mask << "\n";
		mask <<= 1;   //means mask = mask << 1;
	}

	return EXIT_SUCCESS;
}