iiitv/ChefLib

// Code written by Monal
//Program based on pure brute force and only working for n == 2
# include<iostream>

using namespace std
int main() {
    int n
    cin >> n
    cout << "5\n1 1 2 1\n2 1 2 2\n1 1 1 2\n1 1 2 1\n1 2 2 2"
    return 0
}