#include <iostream>

int main()
{
	using namespace std;
	
	int num;
	cin >> num;
	
	int* point = new int[num];
	
	for (int i = 0; i < num; i++)
		cin >> point[i];
	
	/*
	int** array = new int*[num];
	for (int i = 0; i < num; i++)
		array[i] = new int[700000];
	*/
	
	int array[2][700000];
	
	for (int i = 0; i < num; i++)
	{
		for (int k = 0; k < 700000; k++)
		{
			if (i == 0)
			{
				if ((k+1) > point[i] || (k+1) == point[i])
					array[1][k] = point[i];
				
				else
					array[1][k] = 0;
			}
			
			else
			{
				if (k+1 > point[i])
				{
					int a = point[i] + array[0][k - point[i]];
					int b = array[0][k];
					
					if (a > b)
						array[1][k] = a;
					
					else
						array[1][k] = b;
				}
				
				else if (k+1 == point[i])
				{
					int a = point[i];
					int b = array[0][k];
					
					if (a > b)
						array[1][k] = a;
					
					else
						array[1][k] = b;
				}
				
				else
					array[1][k] = array[0][k];
			}
		}
		
		for (int i = 0; i < 700000; i++)
				array[0][i] = array[1][i];
	}
	
	cout << array[1][699999] << endl;
	
	return 0;
}