#include<bits/stdc++.h>
using namespace std;
long long n,w,b;
int main(){
	cin>>n;
	w = n/1;
	b = 27+n/3+23;
	if(w==b){
		cout<<"All"<<endl;
	}else if(w>b){
		cout<<"Bike"<<endl;
	}else{
		cout<<"Walk"<<endl;
	}
	return 0;
}