#include <iostream.h>
 
 
void main() {
    int n;
    while (cin >> n) {
        cout << "decimal: " << n << endl;
 
        //--- Print hex with leading zeros
        cout << "hex    : ";
        for (int i=2*sizeof(int) - 1; i>=0; i--) {
            cout << "0123456789ABCDEF"[((n >> i*4) & 0xF)];
        }
        cout << endl << endl;
    }
 
}

#include <iostream>
 
int main()
{
  int x;
 
  std::cin>> std::hex >> x;
  std::cout<< x <<'\n';
}

#include <iostream>
 
int main()
{
  int x;
 
  std::cin>> std::hex >> x;
  std::cout<< x <<'\n';
}