Nim Game I.cpp

#include<bits/stdc++.h>
using namespace std;
#define INF 2147483647
#define INFL 9223372036854775807
#define pii pair<int,int>
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define ll long long
#define ull unsigned long long
#define M 1000000007
#define FASTIO ios_base::sync_with_stdio(false);cin.tie(NULL); cout.tie(NULL);
#define take(x) scanf("%d",&x)
#define DE(x) printf("\ndebug %d\n",x);
#define vout(x) for(int i=0;i<x.size();i++) printf("%d ",x[i]);
#define pie acos(-1)


int main(){
    int tc;
    cin>>tc;
    while(tc--){
        int n;
        cin>>n;
        int xoor = 0;
        int a;
        while(n--){
            cin>>a;
            xoor^=a;
        }
        if( xoor ) cout<<"first"<<endl;
        else cout<<"second"<<endl;
    }
}