#include <iostream>

using namespace std;
int n,a[1000];
int main()
{
    cin >> n;
    for (int i = 1; i < n; i++ ) cin >> a[i];


    for (int i=n ; i >= 1;i--){
             cout << a[i] << " ";

    }
    cout << "\n";
    int S=0;
    for (int i=1 ; i <= n ; i++){
        if (a[i]%2==0){
             S+=a[i];
        }
    }
    cout << S << "\n";
    int s=0;
    for (int i=0;i<n;i+=2){
        s+=a[i];
    }
    cout << s << " ";


    for ( int i=1; i < n; i++){
        if (a[i]%10==0){

      cout << a[i] << "\n";  }
    }



    int sum=0;
    for (int i=1 ; i < n; i+=2){
        if (a[i]%3==0){
            sum+=a[i];
        }
    }
        cout << sum << "\n";

    return 0;
    }