连续最大和

import java.util.Arrays;
import java.util.Scanner;

public class M3 {
	public static int getmax(int n,int [] arr) {
		int []max=new int[n];
		max[0]=arr[0];
		for (int i = 0; i < arr.length-1; i++) {
			if (max[i]+arr[i+1]>arr[i+1]) {
				max[i+1]=max[i]+arr[i+1];
			}else {
				max[i+1]=arr[i+1];
			}
		}
		Arrays.sort(max);
		return max[n-1];
	}
	
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		int n=scanner.nextInt();
		int a[]=new int [n];
		for (int i = 0; i < a.length; i++) {
			a[i]=scanner.nextInt();
		}
		System.out.println(getmax(n ,a ));
	}
}