hdu 1849 Rabbit and Grass

// Time 15ms, Memory 228K

#include<iostream>#include<cstdio>using namespace std;int main(){    int i,m,k;    while(scanf("%d",&m) && m)    {        int ans=0;        for(i=0;i<m;i++)        {            scanf("%d",&k);            ans^=k;        }        if(ans) printf("Rabbit Win!\n");        else printf("Grass Win!\n");    }    return 0;}