#include <queue>
#include <math.h>
#include <stack>
#include <stdio.h>
#include <iostream>
#include <vector>
#include <iomanip>
#include <string.h>
#include <algorithm>
using namespace std;
#define LL long long
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int main()
{
	float s;
	cin >> s;
	float q,z;
	q = 50 + s / 3.0;
	z = s / 1.2;
	if (z==q)
	{
		cout <<"All";
	}
	else if (q > z)
	{
		cout <<"Walk" ;
	}
	else if(q < z)
	{
		cout <<"Bike";
	}
}