//============================================================================
// Name : div.cpp
// Author : hk
// Version :
// Copyright : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(n) n.begin(), n.end()
#define fi first
#define se second
const int maxn = 1e7 * 1.5;
const int mod = 1e9 + 7;
signed main() {
int n;
cin>>n;
map <int,pair<int,int>> min;
int mx = 0;
for(int i = 0;i < n;i++){
int a,b,c;
cin>>a>>b>>c;
min[a] = {b,c};
mx = max(mx, a);
}
int ans = 0;
vector <bool> vis(mx + 1, false);
for(int i = 0;i <= mx;i++){
if(min.find(i) == min.end() || vis[i])continue ;
int ener = min[i].se;
int ind = i;
int cur = 0;
while(ener >= 0 && ind <= mx){
cur += min[ind].fi;
vis[cur] = 1;
ener--;
ind++;
if(min.find(ind) != min.end())
ener += min[ind].se;
}
ans = max(ans,cur);
}
cout<<ans<<'\n';
return 0;
}
