import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int m = sc.nextInt();
        long w = sc.nextLong();
        int[] values = new int[n];
        for (int i = 0; i < n; i++) {
            values[i] = sc.nextInt();
        }
        Arrays.sort(values);
        long[] sums = new long[n + 1];
        for (int i = 1; i <= n; i++) {
            sums[i] = sums[i - 1] + values[n - i];
        }
        int[] weights = new int[m];
        for (int i = 0; i < m; i++) {
            weights[i] = sc.nextInt();
        }
        int[] contains = new int[m];
        for (int i = 0; i < m; i++) {
            contains[i] = sc.nextInt();
        }
        long[] dpWeights = new long[1 << m];
        long[] dp = new long[1 << m];
        long ans = sums[(int)Math.min(w, n)];
        for (int i = 1; i < (1 << m); i++) {
            for (int j = 0; j < m; j++) {
                if ((i & (1 << j)) == 0) {
                    continue;
                }
                dpWeights[i] = dpWeights[i ^ (1 << j)] + weights[j];
                dp[i] = dp[i ^ (1 << j)] + contains[j];
                break;
            }
            if (w >= dpWeights[i]) {
                ans = Math.max(ans, dp[i] + sums[(int)Math.min(w - dpWeights[i], n)]);
            }
        }
        System.out.println(ans);
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}