package main

import . "fmt"
import . "math"

func main() {
	var s int64
	Scan(&s)
	x:=[]int64{}
	for s>0 {
		e:=int64(Sqrt(float64(s)))
		e*=e
		s-=e
		x=append(x,e)
	}
	Println(len(x))
	for i,v:=range x {
		if i>0 {
			Print(" ")
		}
		Print(v)
	}
	Println()
}