use proconio::input;

fn main() {
    input! {
        n: usize,
        mut a: [usize; n],
    }

    let mut ans = vec![];
    for i in (0..30).rev() {
        let v = 1 << i;
        let r = a.partition_point(|&a| a >> i & 1 == 0);
        if 0 < r && r < n {
            ans.push((0, r - 1, v));
            for j in 0..r {
                a[j] += v;
            }
            a.sort_unstable();
        }
    }
    // assert!(a.iter().all(|&a_i| a_i == a[0]));

    println!("{}", ans.len());
    for (l, r, v) in ans {
        println!("{} {} {v}", l + 1, r + 1);
    }
}