#include<iostream>
#include<cstdio>
using namespace std;
int a[1010];
int dp[1010];
int main() {
int n;
int answer;
scanf("%d", &n);
for (int i = 0 ; i < n ; ++i) {
scanf("%d", &a[i]);
}
for (int i = 0 ; i < n ; ++i) {
dp[i] = a[i];
for (int j = 0 ; j < i; ++j) {
if(a[i] > a[j]){
dp[i] = max(dp[i], dp[j]+a[i]);
}
}
answer = max(answer, dp[i]);
}
printf("%d\n", answer);
}



京公网安备 11010502036488号