#include <bits/stdc++.h>
using namespace std;
void chmax(int &a, int b) { a = max(a, b); }
int main() {
  int N, W, D;
  cin >> N >> W >> D;
  vector A0(0, array<int, 2>()), A1(0, array<int, 2>());
  for (int i = 0; i < N; i++) {
    int T, W, V;
    cin >> T >> W >> V;
    if (T == 0) {
      A0.push_back({W, V});
    } else {
      A1.push_back({W, V});
    }
  }
  vector dp0(W + 1, (int)-1e9), dp1(W + 1, (int)-1e9);
  dp0[0] = 0, dp1[0] = 0;
  for (auto i : A0) {
    for (int j = W; j >= i[0]; j--) {
      if (dp0[j - i[0]] >= 0) chmax(dp0[j], dp0[j - i[0]] + i[1]);
    }
  }
  for (auto i : A1) {
    for (int j = W; j >= i[0]; j--) {
      if (dp1[j - i[0]] >= 0) chmax(dp1[j], dp1[j - i[0]] + i[1]);
    }
  }
  int ans = 0;
  for (int i = 0; i <= W; i++) {
    for (int j = 0; i + j <= W; j++) {
      if (abs(i - j) <= D && dp0[i] >= 0 && dp1[j] >= 0) {
        chmax(ans, dp0[i] + dp1[j]);
      }
    }
  }
  cout << ans << '\n';
}