rambless

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            //非5和非3的能分为两份(差值为5和3的)
            int n = in.nextInt();
            List<Integer> list = new ArrayList<>();
            int sum = 0;
            int sum1 = 0;
            int sum2 = 0;
            int temp;
            for (int i = 0; i < n; i++) {
                temp = in.nextInt();
                if (temp % 3 == 0) {
                    sum1 += temp;
                } else if (temp % 5 == 0) {
                    sum2 += temp;
                } else {
                    list.add(temp);
                }
                sum += temp;
            }
            judge(sum, sum1, list);
        }
    }

    private static void judge(int sum, int sum1, List<Integer> list) {
        if (sum % 2 != 0) {
            System.out.println("false");
            return;
        }
        int target = sum / 2 - sum1;
        //在list中找target
        if (helper(0, target, list)) {
            System.out.println("true");
        } else {
            System.out.println("false");
        }
    }

    private static boolean helper(int index, int target, List<Integer> list) {
        if (index == list.size()) {
            return target==0;
        }
        return helper(index + 1, target, list) ||
               helper(index + 1, target - list.get(index), list);
    }
}