#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N = 1e5 + 7;
int n;
pair<int, pair<int, int> > a[N];
long long pref_d[N], pref_x[N];
signed main()
{
ios_base::sync_with_stdio(NULL);
cin.tie(NULL);
cin>>n;
for(int i = 1; i <= n; i++)
{
int pos, d, x;
cin>>pos>>d>>x;
a[i].first = pos, a[i].second.first = d, a[i].second.second = x;
}
sort(a + 1, a + 1 + n);
for(int i = 1; i <= n; i++)
{
pref_d[i] = pref_d[i - 1] + a[i].second.first;
pref_x[i] = pref_x[i - 1] + a[i].second.second;
}
long long ans = 0;
for(int i = 1; i <= n; i++)
{
for(int j = i; j <= min(i + 1000, n); j++)
{
long long sum_x = pref_x[j] - pref_x[i - 1], sum_d = pref_d[j] - pref_d[i - 1];
int len = a[j].first - a[i].first;
if(len <= sum_x)
ans = max(ans, sum_d);
}
for(int j = n; j >= max(i, n - 1000); j--)
{
long long sum_x = pref_x[j] - pref_x[i - 1], sum_d = pref_d[j] - pref_d[i - 1];
int len = a[j].first - a[i].first;
if(len <= sum_x)
ans = max(ans, sum_d);
}
}
cout << ans;
return 0;
}
