#include<iostream>
 
using namespace std;
  
int main()
  
{
  
	double ws,bs,m;
  
	cin>>m;
  
	ws=m/1.2;
  
	bs=m/3+27+23;
  
	if(ws<bs)
              
	{
              
		cout<<"Walk";
               
	}
               
	if(bs<ws)
  
	{
  
		cout<<"Bike";
  
	}
  
	if(bs==ws)
  
	{
  
		cout<<"All";
  
	}
  
	return 0;
  
 }