> #include<stdio.h>
> int main()
> {
> 	  long long  n,m,a,s,d[55];
> 	while(~scanf("%lld",&n))
> 	{
> 		 for(m=1;m<=n;m++)
> 			scanf("%lld",&d[m]);
> 			int i;
> 			int s=d[1];
> 			for(i=2;i<=n;i++)
> 					s^=d[i];
> 					if(s!=0) printf("Yes\n");
> 					else printf("No\n");
> 
> 	}
> }