#include <iostream>
using namespace std;

int ThapPhan(int n)
{
	int du1,du2, sum = 0,x=0,t=1,m;
	du1 = n % 10;
	m = du1 * 1;
	n = n / 10;
	for (int i = 10; n > 0;)
	{
		du2 = n % i;
		for (int j = 1;j<2; j++)
		{
			t = t * 2;
			x = du2 * t;
			break;
		}
		sum = sum + x;
		n = n / 10;
	}
	cout << "So thap phan do la:" << sum+m;
	return 1;
}

int main()
{
	int n;
	cout << "Vui long nhap so can doi:";
	cin >> n;
	ThapPhan(n);
	return 1;
}