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

int n;
double ax,bx;

int main()
{
    cin>>n;
    ax=n/3.0 + 27.0 + 23.0;
    bx=n/1.2;
    if(ax>bx) cout<<"Bike";
    else if(bx<ax) cout<<"Walk";
    else cout<<"All";
    return 0;
}