#include<bits/stdc++.h>
using namespace std;
int main(){
int n;
cin>>n;
int a[n],b[n],c[n];
for(int i=0;i<n;i++){
cin>>c[i];
}
for(int i=0;i<n;i++){
cin>>a[i];
}
for(int i=0;i<n;i++){
cin>>b[i];
}
int sum_a=0,sum_b=0;
for(int i=0;i<n;i++){
sum_a+=c[i]a[i];
sum_b+=c[i]b[i];
}
if(sum_a>sum_b){
cout<<"ke"<<endl;
}
else if(sum_a<sum_b){
cout<<"do"<<endl;
}
else{
cout<<"same"<<endl;
}
return 0;
}