#include<iostream>
  
using namespace std;
  
int main()
  {
	int a;
  
	cin>>a;
  
	if(a/3.0+50>a/1.2)
  
		cout<<"Walk";
  
	else if(a/3.0+50<a/1.2)
                            
		cout<<"Bike";
  
	else if(a/3.0+50==a/1.2)
               
		cout<<"All";
               
	return 0;
               
}