#include<bits/stdc++.h>
using namespace std;
int main(){
    double a,b;
    int n;
    cin>>n;
    a=n/1.2;
    b=50+n/3.0;
    if(a>b)
        cout<<"Bike";
    else if(a<b)
        cout<<"Walk";
    else
        cout<<"All";
    return 0;
}