#include #include<stdio.h> #include<math.h> #include #include #include #include #include<stdlib.h> #include using namespace std;

  int main()
{   
    string s,s2;
    cin >> s;
    long long a;
    stringstream ss;

    ss << oct << s; //八进制转10进制
    ss >> a;      
    ss.clear(); //清空

    ss << hex << a;  //10j进制转16进制
    ss >> s2;
    cout << s2 << endl; 



    return 0;
}