#include <bits/stdc++.h>
using namespace std;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int len;
    cin >> len;
    double t1, t2; //骑车、走路时间
    t1 = 27 + 23 + len / 3.0;
    t2 = len / 1.2;
    if (t1 < t2)
        cout << "Bike";
    else if (t2 < t1)
        cout << "Walk";
    else
        cout << "All";
    return 0;
}