#include <iostream>

using namespace std;

int main() {
	int a, s = 0;
	cin >> a;

	int b = 10000000;

	for (int i = 7; i > -1; i--, b /= 10) {
		int x = a / b;
		s += x << i;
		a -= b * x;
	}

	cout << s;

	system("PAUSE");
	return 0;
}