GRAY CODE CODECHEF

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

# define ll unsigned long long

int main()
{
   ll n; vector<ll>v;   cin>>n;
   
   for(ll i=0;i<n;i++)
   {
       ll no;
       cin>>no;
       
       if(n<130)
       {
       v.push_back(no);
       } 
       
                      
   
   }
   
    if(n>=130)
        {cout<<"Yes"<<endl;
           return 0;
        
        }   
   
   // brute force for small values , 4 nested loops to pick for nos.
   
   for(ll i=0;i<n;i++)
   {
        for(ll j=i+1;j<n;j++)
        {
            for(ll k=j+1;k<n;k++)
            {
                for(ll p=k+1;p<n;p++)
                {
                     if((v[i]^v[j]^v[k]^v[p])==0)
                     {
                         cout<<"Yes"<<endl;
                         return 0;
                     }
                }
            }
        }
   }
   
   
   
   
   cout<<"No"<<endl;
   
   return 0;
   
   

}