#include<bits/stdc++.h>
using namespace std;


int main()
{
    string s;
    int n;
    while(cin>>s && s[0]!='-')
    {
        if(s[0]=='0'&&s[1]=='x')
        {
            n=stoi(s,nullptr,16);
            printf("%d\n",n);
        }
        else
        {
            n=stoi(s);
            printf("0x%X\n",n);
        }
    }
    return 0;
}