#include <bits/stdc++.h>
using namespace std;

int main(){
	long double jv,bike_s,walk_s;
	cin>>jv;
	bike_s = jv / 3.0 + 50;
	walk_s = jv / 1.2;
	if(bike_s < walk_s){
	    cout<< "Bike" << endl;
	}else if (bike_s > walk_s ){
	    cout << "Walk" << endl;
	}else{
	    cout << "All"<< endl;
	}
	return 0;
}