#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
	vector<int> v {11, 22, 10, 20, 44, 4};
	sort(v.begin(), v.end(), [](auto a, auto b) { return a > b; });
	cout << v.size() << endl;
	for(auto i : v)  cout << hex << i << ' '; 
	return 0;
}