const INF: usize = 1000000000000000000;
fn main() {
    let (n, x, y): (usize, usize, usize) = {  // 定数個の整数を受け取り, 定数個の変数に束縛する
        let mut line: String = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap()
        )
    };
    let mut a = Vec::new();
    let mut b = Vec::new();
    let mut c = Vec::new();
    for _ in 0..n {
        let (p, q, r): (usize, usize, usize) = {  // 定数個の整数を受け取り, 定数個の変数に束縛する
            let mut line: String = String::new();
            std::io::stdin().read_line(&mut line).unwrap();
            let mut iter = line.split_whitespace();
            (
                iter.next().unwrap().parse().unwrap(),
                iter.next().unwrap().parse().unwrap(),
                iter.next().unwrap().parse().unwrap()
            )
        };
        a.push(p); b.push(q); c.push(r);
    }
    let mut dp = vec![vec![INF; y + 1]; x + 1];
    dp[0][0] = 0;
    for i in 0..n {
        for j in (0..x+1).rev() {
            for k in (0..y+1).rev() {
                if a[i] <= j && b[i] <= k {
                    dp[j][k] = dp[j][k].min(dp[j - a[i]][k - b[i]] + c[i]);
                }
            }
        }
    }
    let mut ans = 0;
    for i in 0..x+1 {
        for j in 0..y+1 {
            if dp[i][j] != INF {
                ans = ans.max(dp[i][j]);
            }
        }
    }
    println!("{}", ans);
}