#include <iostream>
using namespace std;
int main()
{
    int n,a[1005],j=0,o=0;
    cin >> n;
    for(int i=1;i<=n;i++)
    {
        cin >> a[i];
        if(i%2==0)
        {
            o+=a[i];
        }
        else
        {
            j+=a[i];
        }
    }
    cout << j << endl << o << endl;
    if(j>o)
    {
        cout << j-o;
    }
    else
    {
        cout << o-j;
    }
}