import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int w = sc.nextInt();
        int d = sc.nextInt();
        int[][] values = new int[2][w + 1];
        for (int[] arr : values) {
            Arrays.fill(arr, Integer.MIN_VALUE / 2);
        }
        values[0][0] = 0;
        values[1][0] = 0;
        while (n-- > 0) {
            int type = sc.nextInt();
            int weight = sc.nextInt();
            int v = sc.nextInt();
            for (int i = w - weight; i >= 0; i--) {
                if (values[type][i] >= 0) {
                    values[type][i + weight] = Math.max(values[type][i + weight], values[type][i] + v);
                }
            }
        }
        int ans = 0;
        for (int i = 0; i <= w; i++) {
            for (int j = Math.max(0, i - d); i + j <= w && j <= i + d; j++) {
                ans = Math.max(ans, values[0][i] + values[1][j]);
            }
        }
        System.out.println(ans);
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}