#include<iostream>
#include<iomanip>
#include<vector>
#include<math.h>
#include<algorithm>
#include<map>
#include<queue>
#include<stack>
#include<deque>
#include<set>
#include<cmath>
#include<ctime>
#include<bitset>
#define rep(i,a,b) for(int i=a;i<=b;i++)
using namespace std;
using ll = long long;
using vec = vector<ll>;
using Graph = vector<vec>;
using Pair = pair<ll,ll>;

void debug1(vec v){
    for(auto x:v)cout << x << ' ';
    cout << endl;
}
void debug2(vector<Pair> v){
    for(auto x:v)cout << '(' << x.first << ',' << x.second << ')' << endl;
}
void debug3(Graph v){
    rep(i,0,v.size()-1)debug1(v[i]);
    cout << endl;
}
int main(){
    int n,w,d;
    cin >> n >> w >> d;
    Graph zer = {{0,0}},one = {{0,0}};
    rep(i,1,n){
        int t,wi,v;
        cin >> t >> wi >> v;
        if(t == 0)zer.push_back({wi,v});
        else one.push_back({wi,v});
    }
    ll n1 = zer.size(),n2 = one.size();
    Graph dp1(n1,vec(w+1,-1)),dp2(n2,vec(w+1,-1));
    dp1[0][0] = 0;dp2[0][0] = 0;
    if(n1 > 1)rep(i,1,n1-1){
        dp1[i][0] = 0;
        rep(ww,0,w){
            if(dp1[i-1][ww] == -1)continue;
            if(ww + zer[i-1][0] > w)continue;
            dp1[i][ww + zer[i][0]] = max(dp1[i][ww + zer[i][0]],dp1[i-1][ww] + zer[i][1]);
        }
    }
    if(n2 > 1)rep(i,1,n2-1){
        dp2[i][0] = 0;
        rep(ww,0,w){
            
            if(dp2[i-1][ww] == -1)continue;
            if(ww + one[i-1][0] > w)continue;
            dp2[i][ww + one[i][0]] = max(dp2[i][ww + one[i][0]],dp2[i-1][ww] + one[i][1]);
        }
    }
    ll ans = 0;
    rep(i,0,w){
        if(dp1[n1-1][i] == -1)continue;
        if(min(w-i,i+d) - max(0,i-d) > 0)rep(j,max(0,i-d),min(w-i,i+d)){
            if(dp2[n2-1][j] == -1)continue;
            ans = max(ans,dp1[n1-1][i] + dp2[n2-1][j]);
        }
    }
    //debug3(dp1);
    //debug3(dp2);
    cout << ans;
}