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

int main()
{
    double x;
    cin>>x;
    double a,b;
    b=x/1.2;
    a=x/3+50;
    if(a>b) cout<<"Walk";
    else if(a<b) cout<<"Bike";
    else cout<<"All";
    return 0;
}