#![allow(unused)]
use proconio::*;
use std::collections::*;

fn main() {
    input! {
        n: usize, m: usize, w: usize,
        mut a: [usize; n],
        b: [usize; m],
        c: [usize; m]
    }
    a.sort_by(|a, b| b.cmp(a));
    let mut rui = vec![0];
    for ai in a {
        rui.push(rui[rui.len()-1]+ai)
    }

    let mut ans = 0;
    for bit in 0..1<<m {
        let mut val_cnt = 0;
        let mut weight_cnt = 0;
        for i in 0..m {
            if bit&1<<i > 0 {
                val_cnt += c[i];
                weight_cnt += b[i];
            }
        }
        if weight_cnt > w {
            continue;
        }
        val_cnt += rui[(w-weight_cnt).min(n)];
        ans = ans.max(val_cnt)
    }
    println!("{ans}")
}