#include <bits/stdc++.h>
using namespace std;
//#include<atcoder/all>
//using namespace atcoder;
using ll = long long int;
using ull = unsigned long long int;
using ld = long double;
constexpr ll MAX = 2000000000000000000;
constexpr ld PI = 3.14159265358979;
constexpr ll MOD = 0;//2024948111;
ld dotorad(ld K){ return PI * K / 180.0; }
ld radtodo(ld K){ return K * 180.0 / PI; }
mt19937 mt;
void randinit(){ srand((unsigned)time(NULL));mt = mt19937(rand()); }
int main(){
    ll N,W,D;
    cin >> N >> W >> D;
    vector<ll> DP1(W + 1,-MAX),DP2(W + 1,-MAX);
    DP1[0] = 0;
    DP2[0] = 0;
    for(ll i = 0;i < N;i++){
        ll t,w,v;
        cin >> t >> w >> v;
        if(t == 1){
            for(ll j = W;j >= w;j--){
                DP1[j] = max(DP1[j],DP1[j - w] + v);
            }
        }
        else{
            for(ll j = W;j >= w;j--){
                DP2[j] = max(DP2[j],DP2[j - w] + v);
            }
        }
    }
    ll ans = 0;
    for(ll i = 0;i <= W;i++){
        for(ll j = 0;j <= W;j++){
            if(i + j <= W && abs(i - j) <= D){
                ans = max(ans,DP1[i] + DP2[j]);
            }
        }
    }
    cout << ans << endl;
}