tijie

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a[100];
    int n,m;
    cin>>a[1]>>a[2]>>a[3]>>a[4]>>n>>m;
   	for(int i=1;i<=4;i++){
        a[i]=abs(a[i]-n);
    }
    if(a[1]>=m&&a[2]>=m&&!(a[4]>=m&&a[3]>=m)) cout<<"Warning:1 and 2";
    else if(a[4]>=m&&a[3]>=m&&!(a[1]>=m&&a[2]>=m)) cout<<"Warning:3 and 4";
    else if(a[4]<m&&a[3]<m&&a[2]<m&&a[1]<m) cout<<"let's go";
    else cout<<"Warining:Emergency landing!";
    return 0;
}