#include<iostream>
using namespace std;
int main(){
	double a;
	cin>>a;
	if( 50+a/3 < a/1.2 ){
		cout<<"Bike";
	
	}else if(50+a/3 > a/1.2){
		cout<<"Walk";
	}
	else if(50+a/3 == a/1.2){
		cout<<"All";
	};
}