use std::{
    convert::TryFrom,
    io::{stdin, BufRead},
};

fn main() {
    let stdin = stdin();
    let mut stdin = stdin.lock().lines().map(Result::unwrap);
    let [n, _m, lim] = <[_; 3]>::try_from(
        stdin
            .next()
            .unwrap()
            .split_whitespace()
            .map(|x| x.parse::<usize>().unwrap())
            .collect::<Vec<_>>()
            .as_slice(),
    )
    .unwrap();
    let lim = lim + 1;
    let mut dp = vec![false; lim];
    dp[0] = true;
    for _ in 0..n {
        let mut swp = vec![false; lim];
        let w = stdin
            .next()
            .unwrap()
            .split_whitespace()
            .map(|x| x.parse::<usize>().unwrap())
            .collect::<Vec<_>>();
        for i in (0..lim).rev() {
            for &w in &w {
                if i + w < lim {
                    swp[i + w] |= dp[i];
                }
            }
        }
        dp = swp;
    }
    let ans = dp
        .iter()
        .rposition(|&x| x)
        .map_or(-1, |p| (lim - 1 - p) as isize);
    println!("{}", ans);
}