#![allow(non_snake_case, unused_imports)]
use std::io::{self, prelude::*};
use std::str;

fn main() {
    let (stdin, stdout) = (io::stdin(), io::stdout());
    let mut scan = Scanner::new(stdin.lock());
    let mut out = io::BufWriter::new(stdout.lock());

    macro_rules! input {
        ($T: ty) => {
            scan.token::<$T>()
        };
    }

    let N = input!(usize);
    let M = input!(usize);
    let W = input!(isize);

    let A = (0..N).map(|_| input!(isize)).collect::<Vec<_>>();
    let B = (0..N).map(|_| input!(isize)).collect::<Vec<_>>();
    let C = (0..M).map(|_| input!(isize)).collect::<Vec<_>>();
    let D = (0..M).map(|_| input!(isize)).collect::<Vec<_>>();

    let mut ans = 0;

    for s in 0..(1 << N) {
        let mut sum_w = 0;
        let mut sum_v = 0;

        for i in 0..N {
            if (s >> i) & 1 == 1 {
                sum_w += A[i];
                sum_v += B[i];
            }
        }

        for t in 0..(1 << M) {
            let mut Sum_w = sum_w;
            let mut Sum_v = sum_v;

            for i in 0..M {
                if (t >> i) & 1 == 1 {
                    Sum_w -= C[i];
                    Sum_v -= D[i];
                }
            }

            if Sum_w >= 0 && Sum_w <= W {
                ans = std::cmp::max(ans, Sum_v);
            }
        }
    }

    writeln!(out, "{}", ans);
}

struct Scanner<R> {
    reader: R,
    buf_str: Vec<u8>,
    buf_iter: str::SplitWhitespace<'static>,
}
impl<R: BufRead> Scanner<R> {
    fn new(reader: R) -> Self {
        Self {
            reader,
            buf_str: vec![],
            buf_iter: "".split_whitespace(),
        }
    }
    fn token<T: str::FromStr>(&mut self) -> T {
        loop {
            if let Some(token) = self.buf_iter.next() {
                return token.parse().ok().expect("Failed parse");
            }
            self.buf_str.clear();
            self.reader
                .read_until(b'\n', &mut self.buf_str)
                .expect("Failed read");
            self.buf_iter = unsafe {
                let slice = str::from_utf8_unchecked(&self.buf_str);
                std::mem::transmute(slice.split_whitespace())
            }
        }
    }
}