#28534: _CPP
11030067@mail.hpsh.tp.edu.tw
(和平110級鄧雨珊)
#include <iostream>
using namespace std;
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int t, n, m;
cin >> t;
while (t--){
cin >> n >> m;
int a[144];
int len=m*n;
for (int i=0; i<len; i++){
cin >> a[i];
}
bool go=true;
for (int i=0; i<=len/2; i++){
if (a[i]!=a[len-1-i]){
go=false;
break;
}
}
if (go){
cout <<"go forward"<<endl;
}
else {
cout <<"keep defending"<<endl;
}
}
}