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

int main()
{
    char s[10000];
    int n;
    while(1)
    {
        scanf("%s",s);
        if(s[0]=='-')
            break;
        if(s[0]=='0'&&s[1]=='x')
        {
            sscanf(s,"%X",&n);
            printf("%d\n",n);
        }
        else
        {
            sscanf(s,"%d",&n);
            printf("0x%X\n",n);
        }
    }
    return 0;
}