#include <bits/stdc++.h>
#include <iostream>
#include <iomanip>
#include <cmath>
#include <math.h>
#include <algorithm>
#include <cstring>
using namespace std;
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int main()
{
	float b , r = 3.0 , w , f = 1.2 , m;
	cin >> m;
	b = m / r + 50;
	w = m / f;
	if( b > w )
	{
		cout << "Walk" << endl;
	}
	else if( b < w )
	{
		cout << "Bike" << endl;
	}
	else
	{
		cout << "All" << endl;
	}
    return 0;
}