HDU 2057: A + B Again

Posted 2020-10-03

///@link http://acm.hdu.edu.cn/showproblem.php?pid=2057
///@author Sycamore
///@date Aug 17
#include<bits/stdc++.h>
using namespace std;
int main()
{
   ios::sync_with_stdio(false);
   cin.tie(0);
   long long a,b,ans;
   while(cin>>hex>>a>>b)
   {
      ans=a+b;
      if(ans>=0)
      cout<<uppercase<<hex<<ans<<‘\n‘;
      else cout<<uppercase<<hex<<‘-‘<<-ans<<‘\n‘;
   }
   return 0;
}