C++ :

#include <iostream>
using namespace std;
int main()
{
	int n ,i,j,k;
	cin>>n;
	for(i = 2; i < n; i++)
	{
		for(j = 2; j < n - i; j++)
		{
			k = n - i - j;
			if(i + j + k == n && i % 2 == 0 && j % 2 == 0 && k % 2 == 0 && i <= j && j <= k)
			{
				cout<<i<<" "<<j<<" "<<k<<endl;
			}
		}
	}
	return 0;
}

Pascal :

var n,i,j,k:longint;
begin
read(n);
for i:=1 to n do
for j:=1 to n do
for k:=1 to n do
if (i<=j)and(j<=k)and(i+j+k=n)and(i mod 2=0)and(j mod 2=0)and(k mod 2=0) then writeln(i,' ',j,' ',k);
end.

Java :

import java.util.*;
public class Main{
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		for(int i = 1;i<n;i++){
			for(int j = 1;j<n;j++){
				for(int k = 1;k<n;k++){
					if(i<=j&&j<=k&&i%2==0&&j%2==0&&k%2==0&&i+j

+k==n){
						System.out.println(i+" "+j+" "+k);
					}
				}
			}
		}	
	}
}

Python :

n = int(input())
for i in range(1, n + 1):
    for j in range(1, n + 1):
        for k in range(1, n + 1):
            if i + j + k == n and i % 2 == 0 and j % 2 == 0 and k % 2 == 0 and i <= j <= k:
                print(str(i) + ' ' + str(j) + ' ' + str(k))