package main

import . "fmt"
import bf "bufio"
import . "os"

func main() {
	rd := bf.NewReader(Stdin)
	var n int
	Fscan(rd,&n)
	b := make([]int, 30)
	for i := 0; i < n; i++ {
		var a int
		Fscan(rd,&a)
		for j := 0; j < 30; j++ {
			if ((a>>j)&1) == 0 {
				b[j]++
			}
		}
	}
	for i := 29; i >= 0; i-- {
		if b[i] > 0 {
			Println(1, b[i], 1<<i)
		}
	}
}