#include<iostream>
using namespace std;
#include<cstring>
#include<cmath>
int main()
{
	int n;
	cin >> n;
	int a[100];
	int i = 0;
	while(n > 0){
		a[i] = n % 2;
		i++;
		n = n / 2;
	}
	int b[50];
	//cout << i <<endl;
	for(int j = 0 ; j <32 - i; j++){
		b[j] = 0;
	}
	int w = 32 - i;
	for(int j = i - 1; j >= 0; j--) {
		b[w] = a[j];
		w++;
	}
	int c[50];
	int x = 0;
	for(int i = w / 2  ;i < w; i++) {
		c[x] = b[i];
	    x++;
	}
	for(int j = 0; j <w / 2; j++) {
		c[x] = b[j];
		x++;
	}
	long long int sum = 0;
	int q = 0;
	for(int i = x - 1; i >=0; i--) {
		sum += c[i] * pow(2,q);
		q++;
	}
	cout << sum << endl;
	return 0;
}