#include<cstdio>
#include<iostream>
using namespace std;
const int N=1e5+0;
int a[N];

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int n,num;
	cin>>n;
	long long sumb=0,sumc=0;

	for(int j=0;j<n;++j) cin>>a[j];
	for(int j=0;j<n;++j){
		cin>>num;
		sumb+=a[j]*num;
	}
	for(int j=0;j<n;++j){
		cin>>num;
		sumc+=a[j]*num;
	}
	if(sumb>sumc) cout<<"ke";
	else if(sumb==sumc) cout<<"same";
	else cout<<"do";
	return 0;
	
}