import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int[] chocolates = new int[n];
        int totalSum = 0;
 
        for (int i = 0; i < n; i++) {
            chocolates[i] = scanner.nextInt();
            totalSum += chocolates[i];
        }
        scanner.close();
        // If total chocolates is odd, cannot divide equally
        if (totalSum % 2 != 0) {
            System.out.println("NO");
            return;
        }
        int target = totalSum / 2;
        // DP approach to check if there exists a subset with sum = target
        if (canPartition(chocolates, target)) {
            System.out.println("YES");
        } else {
            System.out.println("NO");
        }
    }
    // Function to check if we can partition into two equal subsets
    private static boolean canPartition(int[] chocolates, int target) {
        int n = chocolates.length;
        boolean[] dp = new boolean[target + 1];
        dp[0] = true; // Base case: sum 0 is always possible
        for (int num : chocolates) {
            for (int j = target; j >= num; j--) {
                dp[j] |= dp[j - num]; // If dp[j - num] was true, then dp[j] can be true
            }
        }
        return dp[target];
    }
}
 

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