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