#include <bits/stdc++.h>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
//#define endl '\n'
llo n;
llo aa[100000];
llo bb[100000];
llo cc[100000];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin>>n;
vector<llo> arr;
llo su=0;
llo ans=0;
vector<llo> pre;
for(llo i=0;i<n;i++){
cin>>aa[i]>>bb[i]>>cc[i];
llo cur=aa[i]-su-cc[i];
llo low=0;
llo high=i-1;
while(low<high-1){
llo mid=(low+high)/2;
if(arr[mid]>=cur){
high=mid;
}
else{
low=mid;
}
}
llo ind=i;
for(llo j=low;j<high+1;j++){
if(arr[j]>=cur){
ind=min(ind,low);
}
}
/*for(auto j:arr){
cout<<j<<",";
}
cout<<endl;*/
if(pre.size()){
pre.pb(pre.back()+bb[i]);
}
else{
pre.pb(bb[i]);
}
if(ind==0){
ans=max(ans,pre[i]);
}
else{
ans=max(ans,pre[i]-pre[ind-1]);
}
if(arr.size()){
arr.pb(max(arr.back(),aa[i]-su));
}
else{
arr.pb(aa[i]);
}
su+=cc[i];
}
cout<<ans<<endl;
return 0;
}
