macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};

    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };

    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };

    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };

    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };

    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
#[allow(unused_imports)]
use std::ops::*;
#[allow(unused_imports)]
use std::cmp::*;
#[allow(unused_imports)]
use std::collections::*;

fn main() { 
    input! {
        n: usize, m: usize, w: i64,
        al: [i64; n],
        bl: [i64; n],
        cl: [i64; m],
        dl: [i64; m],
    }
    let mut ans = 0;
    for i in 0..(1 << n) {
        let mut sw = 0i64;
        let mut sv = 0i64;
        for j in 0..n {
            if (1 << j) & i != 0 {
                sw += al[j];
                sv += bl[j];
            }
        }
        for s in 0..(1 << m) {
            let mut cw = sw;
            let mut cv = sv;
            for t in 0..m {
                if (1 << t) & s != 0 {
                    cw -= cl[t];
                    cv -= dl[t];
                }
            }
            if cw <= w {
                ans = max(ans, cv);
            }
        }
    }
    println!("{}", ans);
}