#include <stdio.h>int main(){    int i;    int k;    int a[100000];    scanf("%d", &k);    for(i = 0; i < k; i++)    {        scanf("%d", &a[i]);    }    printf("%d", MaxSubseqSum(a, k));    return 0;}int MaxSubseqSum(int a[], int n){    int ThisSum, MaxSum;    int i;    ThisSum = MaxSum = 0;    for(i = 0; i < n; i++)    {        ThisSum += a[i];        if(ThisSum > MaxSum)            MaxSum = ThisSum;        else if(ThisSum < 0)            ThisSum = 0;    }    return MaxSum;}