#include using namespace std; #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[8]={1,0,-1,0,1,1,-1,-1}; const ll dx[8]={0,1,0,-1,1,-1,1,-1}; template inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } int main(){ ll n;cin >> n; vl v(n);rep(i,n)cin >> v[i]; vpl dp(n+1);dp[1]={v[0],0}; rep(i,n){ rep(j,i){ chmax(dp[i+1],{dp[j].fi+v[i],j}); } } ll ans=0; ll p=-1;rep(i,n+1)if(chmax(ans,dp[i].fi))p=i; //rep(i,n+1)cout << dp[i].fi <<" " << dp[i].se <