DS1-14

#include <stdio.h>
 
#define MAXSIZE 10000
 
int MaxSubseqSum4(int List[], int N);
 
int main()
{
	int List[MAXSIZE];
	int N;
	scanf("%d", &N);
	int i;
	for(i=0; i<N; ++i)
		scanf("%d", &List[i]);
	int ans=MaxSubseqSum4(List, N);
	printf("%d\n", ans);
	return 0;
}
 
int MaxSubseqSum4(int List[], int N)
{
	int ThisSum=0, MaxSum=0;
	int i;
	for(i=0; i<N; ++i)
	{
		ThisSum+=List[i];
		if(ThisSum>MaxSum)
			MaxSum=ThisSum;
		else if(ThisSum<0)
			ThisSum=0;
	}
	return MaxSum;