#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int N,W,D; cin >> N >> W >> D;
    vector<pair<int,int>> Q0,Q1;
    for(int i=0; i<N; i++){
        int t,w,v; cin >> t >> w >> v;
        if(t == 0) Q0.push_back({w,v});
        if(t == 1) Q1.push_back({w,v});
    }

    int inf = 1e9;
    vector<int> dp0(W+1,-inf),dp1(W+1,-inf);
    dp0.at(0) = 0; dp1.at(0) = 0;
    for(auto [w,v] : Q0){
        for(int i=W; i>=0; i--) if(i+w <= W) dp0.at(i+w) = max(dp0.at(i+w),dp0.at(i)+v);
    } 
    for(auto [w,v] : Q1){
        for(int i=W; i>=0; i--) if(i+w <= W) dp1.at(i+w) = max(dp1.at(i+w),dp1.at(i)+v);
    }

    int answer = 0;
    for(int i=0; i<=W; i++) for(int k=0; k<=W; k++){
        if(i+k > W || abs(i-k) > D) continue;
        answer = max(answer,dp0.at(i)+dp1.at(k));
    }
    cout << answer << endl;
}