#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> PP;
// #define MOD 1000000007
#define MOD 998244353
#define INF 2305843009213693951
//#define INF 810114514
#define PI 3.141592653589
#define setdouble setprecision
#define REP(i,n) for(ll i=0;i<(n);++i)
#define OREP(i,n) for(ll i=1;i<=(n);++i)
#define RREP(i,n) for(ll i=(n)-1;i>=0;--i)
#define ORREP(i,n) for(ll i=(n);i>=1;--i)
#define rep(i,a,b) for(ll i=(a);i<=(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define GOODBYE do { cout << "-1" << endl; return 0; } while (false)
#define MM <<" "<<
#define Endl endl
#define debug true
#define debug2 false


int main(void){
    //cin.tie(nullptr);
    //ios::sync_with_stdio(false);
    
    ll N,W,D;
    cin >> N >> W >> D;
    vector<ll> W1,W2,V1,V2;
    REP(i,N){
        ll t,w,v;
        cin >> t >> w >> v;
        if(t==0){
            W1.push_back(w);
            V1.push_back(v);
        }else{
            W2.push_back(w);
            V2.push_back(v);
        }
    }
    
    // dp[i][j] := iまで見た、重量がj以下のときの最大価値
    
    vector<ll> dp1(W+1,-INF),dp2(W+1,0);
    dp1[0]=0;
    REP(i,W1.size()){
        vector<ll> tmp(W+1,-INF);
        REP(j,W+1){
            // 選ばない
            tmp[j] = max(tmp[j],dp1[j]);
            // 選ぶ
            if(j+W1[i]<=W){
                tmp[j+W1[i]] = max(tmp[j+W1[i]],dp1[j]+V1[i]);
            }
        }
        
        swap(dp1,tmp);
    }
    
    REP(i,W2.size()){
        vector<ll> tmp(W+1,0);
        REP(j,W+1){
            // 選ばない
            tmp[j] = max(tmp[j],dp2[j]);
            // 選ぶ
            if(j+W2[i]<=W){
                tmp[j+W2[i]] = max(tmp[j+W2[i]],dp2[j]+V2[i]);
            }
        }
        
        swap(dp2,tmp);
    }
    
    // REP(i,W+1){cout << dp1[i] << " ";}cout << endl;
    // REP(i,W+1){cout << dp2[i] << " ";}cout << endl;
    
    ll Ans = 0;
    REP(i,W+1){
        ll k = min(W-i,i+D);
        if(abs(i-k)<=D){
            Ans = max(Ans,dp1[i]+dp2[k]);
        }
    }
    
    cout << Ans << endl;
    
    return 0;
    
}