#include <bits/stdc++.h>
using namespace std;
#define int long long
void solve()
{
    int n;
    cin >> n;
    int a[n];
    
    for(int i = 0; i < n; i++) cin >> a[i];
    cout<<(n/2)*6<<endl;
    for(int i = 1; i <= n; i+=2){
        int j = i + 1;
        cout<<1<<" "<<i<<" "<<j<<endl;
        cout<<2<<" "<<i<<" "<<j<<endl;
        cout<<2<<" "<<i<<" "<<j<<endl;
        cout<<1<<" "<<i<<" "<<j<<endl;
        cout<<2<<" "<<i<<" "<<j<<endl;
        cout<<2<<" "<<i<<" "<<j<<endl;
    }
}

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t;
    cin>> t;
    while(t--)solve();
    return 0;
}