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

int op(int lhs, int rhs){
    return max(lhs, rhs);
}
int e(){
    return -(1 << 29);
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, W, D, t, w, v, ans = 0;
    cin >> n >> W >> D;
    vector<vector<int>> dp(2, vector<int>(W + 1, -(1 << 30)));
    dp[0][0] = dp[1][0] = 0;
    while(n--){
        cin >> t >> w >> v;
        for(int i = W - w; i >= 0; i--){
            dp[t][i + w] = max(dp[t][i + w], dp[t][i] + v);
        }
    }
    atcoder::segtree<int, op, e> seg0(dp[0]);
    atcoder::segtree<int, op, e> seg1(dp[1]);
    for(int i = 0; i <= W; i++){
        int l = max(0, i - D), r = min(i + D, W - i) + 1;
        if(l >= r) break;
        ans = max(ans, dp[0][i] + seg1.prod(l, r));
        ans = max(ans, dp[1][i] + seg0.prod(l, r));
    }
    cout << ans << '\n';
}