#include <iostream>
using namespace std;

int main() {
	int n;
	cin >> n;
	
	int arr[n+1];
	for(int i=0; i<n; i++) {
		cin >> arr[i];
	}
	
	int start = 0;
	int end = n-1;
	int turn = 1;
	bool reverse = false;
	int selected = 0;
	int p1 = 0, p2 = 0;
	
	while(start <= end) {
		if(turn % 2 != 0) {
			// P1 turn
			if(reverse == false) {
				p1 = p1 + arr[start];
				selected = arr[start];
				start++;
			} else {
				p1 = p1 + arr[end];
				selected = arr[end];
				end--;
			}
		} else {
			// P2 turn
			if(reverse == false) {
				p2 = p2 + arr[start];
				selected = arr[start];
				start++;

			} else {
				p2 = p2 + arr[end];
				selected = arr[end];
				end--;
			}
		}
		if(selected % 2 == 0) {
			if(reverse == false) {
				reverse = true;
			} else {
				reverse = false;
			}
		}
		turn++;
	}
	cout << "Score: "<< (p1 - p2);
	return 0;
}