macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes
                .by_ref()
                .map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

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

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

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

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

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

    ($next:expr, Usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}

fn main() {
	input! {
		n: usize,
		m: usize,
		w: i32,
		a: [i32; n],
		b: [i32; n],
		c: [i32; m],
		d: [i32; m],
	}
	let mut ans = 0;
	for i in 0..1 << n {
		for j in 0..1 << m {
			let mut wi = 0;
			let mut vi = 0;
			for k in 0..n {
				if i >> k & 1 == 1 {
					wi += a[k];
					vi += b[k];
				}
			}
			for l in 0..m {
				if j >> l & 1 == 1 {
					wi -= c[l];
					vi -= d[l];
				}
			}
			if 0 <= wi && wi <= w {
				ans = ans.max(vi);
			}
		}
	}
	println!("{}", ans);
}