#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)

using namespace std;
using ll = long long;

inline void chmax(ll& x, ll y) { if (x < y) x = y; }

int main() {
    int n, x, y;
    cin >> n >> x >> y;
    
    vector dp(x+1, vector<ll>(y+1));
    rep(i, n) {
        int a, b, c;
        cin >> a >> b >> c;
        for (int j = x; j >= a; --j) {
            for (int k = y; k >= b; --k) {
                chmax(dp[j][k], dp[j-a][k-b]+c);
            }
        }
    }
    
    cout << dp[x][y] << '\n';
    
    return 0;
}