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