#pragma GCC optimize("Ofast,O2,O3")
#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
void debug_out() { cerr << endl; }
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
cerr << "[" << H << "]";
debug_out(T...);
}
#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define revall(x) (x).rbegin(), (x).rend()
clock_t startTime;
double getCurrentTime() {
return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}
#define MP make_pair
typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.00001;
const int MOD = 1e9;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 2e6 + 3e2;
const int M = 2522;
ll x[N], pd[N], pg[N];
ll t[N];
void update(int pos, ll val, int v = 1, int tl = 1, int tr = 3e5){
if (tl == tr){
t[v] = min(t[v], val);
return;
}
int tm = (tl + tr) >> 1;
if (pos <= tm) update(pos, val, v + v, tl, tm); else
update(pos, val, v + v + 1, tm + 1, tr);
t[v] = min(t[v + v], t[v + v + 1]);
}
ll get(int l, int r, int v = 1, int tl = 1, int tr = 3e5){
if (l <= tl && tr <= r) return t[v];
if (tl > r || tr < l) return LLINF;
int tm = (tl + tr) >> 1;
return min(get(l, r, v + v, tl, tm), get(l, r, v + v + 1, tm + 1, tr));
}
void solve(int TC) {
fill(t, t + N, LLINF);
int n;
cin >> n;
for (int i = 1; i <= n; i++){
cin >> x[i] >> pg[i] >> pd[i];
pg[i] += pg[i - 1];
pd[i] += pd[i - 1];
}
set<ll> s;
for (int i = 1; i <= n; i++){
s.insert(pd[i - 1] - x[i]);
s.insert(pd[i] - x[i]);
}
map<ll, int> mp;
for (ll k : s) mp[k] = mp.size() + 1;
ll ans = 0;
for (int i = 1; i <= n; i++){
int pos = mp[pd[i - 1] - x[i]];
update(pos, pg[i - 1]);
pos = mp[pd[i] - x[i]];
ans = max(ans, pg[i] - get(1, pos));
}
cout << ans;
}
int main() {
startTime = clock();
cin.tie(nullptr);
cout.tie(nullptr);
ios_base::sync_with_stdio(false);
bool llololcal = false;
#ifdef dddxxz
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
llololcal = true;
#endif
int TC = 1;
//cin >> TC;
for (int test = 1; test <= TC; test++) {
debug(test);
//cout << "Case #" << test << ": ";
solve(test);
}
if (llololcal) cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;
return 0;
}
