use std::str::FromStr;
use std::{io::*, vec};

fn main() {
    let n: usize = read();
    let w: usize = read();
    let d: usize = read();
    let mut value = vec![vec![i32::MIN; w + 1]; 2];
    value[0][0] = 0;
    value[1][0] = 0;
    for _i in 1..=n {
        let ti: usize = read();
        let wi: usize = read();
        let vi: usize = read();
        if wi > w{
            continue;
        }
        for x in (0..=(w - wi)).rev(){
            value[ti][x + wi] = value[ti][x + wi].max(value[ti][x] + vi as i32);
        }
    }
    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);
}

pub fn read<T: FromStr>() -> T {
    let stdin = stdin();
    let stdin = stdin.lock();
    let token: String = stdin
        .bytes()
        .map(|c| c.expect("failed to read char") as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect();
    token.parse().ok().expect("failed to parse token")
}