#include <iostream>
using namespace std;
int main()
{
int Bt,Wt,x;
cin >>x;
Bt=x/3+50;Wt=x/1.2;
if(Bt>Wt){
cout <<"Walk"<<endl ;
}
else if(Bt<Wt){
cout << "Bike" << endl;
}
else {
cout << "All" << endl;
}
return 0;
}