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