#include<bits/stdc++.h>
using namespace std;
int main(){
	double n,b,w=0;
	cin>>n;
	b=n/3.0+27.0+23.0;
	w=n/1.2;
	if(b<n){
		cout<<"Bike";
	}else if(b>n){
		cout<<"Walk"; 
	}else if(b==n){
		cout<<"All";
	}
	return 0;
} 

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