#![allow(non_snake_case)]
use proconio::{input};

fn main() {
    input!{
        n: usize, W: usize, D: usize,
        items: [(usize, usize, i32); n]
    }
    let mut value = vec![vec![i32::MIN; W + 1]; 2];
    value[0][0] = 0;
    value[1][0] = 0;
    for (t, w, v) in items {
        if w > W { continue; }
        for x in (0..=(W - w)).rev() {
            value[t][x + w] = value[t][x + w].max(value[t][x] + v);
        }
    }

    let mut ans = 0;
    for x in 0..=W {
        for y in 0..=(W - x) {
            if x.abs_diff(y) <= D && value[0][x] >= 0 && value[1][y] >= 0 {
                ans = ans.max(value[0][x] + value[1][y]);
            }
        }
    }
    println!("{ans}");
}