#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; }