F

#include <iostream>

using namespace std;
const int N = 1e5+13;

int a[N];
bool used[N];
int main()
{
   int n;
   cin >> n;
   int cnt = 0;int boofer = -1;
   for (int i = 0; i < n; ++i)
      {
          scanf("%d", &a[i]);
          if (a[i] == 0)
          {
              cnt++
              used[i] = true;
          }
          else
          {
              continue;
          }
          if (cnt == 1)
          {
              boofer = i;
          }
          if (cnt == 2)
          {
              cout << 1 << ' ' << boofer << ' ' << i << endl;
              cnt = 0;
          }
      }
    if (cnt == 1)
    {
        cout << 2 << ' ' << boofer << endl;
        cnt = 0;
    }
    for(int i = 0; i < n; ++i)
    {
        if (!used[i])
            cnt++;
        if (cnt == 1)
        {
            boofer = i;
        }
        if (cnt == 2)
        {
            cnt = 0;
            cout << 1 << ' ' << boofer << ' ' << i << endl;
        }
    }

}