
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class Main {
	private static final int MOD = (int)Math.pow(10, 9);
	public static void main(String[] args) {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	}
	
	private static void pickGem(
			int pos,
			int[] values,
			int[] costs,
			int x,
			int y,
			int[] res) {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	}
	
    static class FastReader {
	    BufferedReader br;
	    StringTokenizer st;
	
	    public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    }
	  
	    String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    }
	
	    int nextInt() {
	      return Integer.parseInt(next());
	    }
	
	    long nextLong() {
	      return Long.parseLong(next());
	    }
	
	    double nextDouble() { 
	      return Double.parseDouble(next());
	    }
	
	    String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      }
	  }
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.util.ArrayList; ArrayList java.util import java.util.Arrays; Arrays java.util import java.util.HashSet; HashSet java.util import java.util.List; List java.util import java.util.Set; Set java.util import java.util.StringTokenizer; StringTokenizer java.util public class Main {
	private static final int MOD = (int)Math.pow(10, 9);
	public static void main(String[] args) {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	}
	
	private static void pickGem(
			int pos,
			int[] values,
			int[] costs,
			int x,
			int y,
			int[] res) {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	}
	
    static class FastReader {
	    BufferedReader br;
	    StringTokenizer st;
	
	    public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    }
	  
	    String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    }
	
	    int nextInt() {
	      return Integer.parseInt(next());
	    }
	
	    long nextLong() {
	      return Long.parseLong(next());
	    }
	
	    double nextDouble() { 
	      return Double.parseDouble(next());
	    }
	
	    String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      }
	  }
} Main private static final int MOD = (int)Math.pow(10, 9); MOD (int)Math.pow(10, 9) Math.pow Math 10 9 public static void main(String[] args) {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	} main {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	} FastReader sc = new FastReader(); sc new FastReader() int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int[] v = new int[n]; v new int[n] n int[] c = new int[n]; c new int[n] n int[] res = {Integer.MIN_VALUE, 0}; res {Integer.MIN_VALUE, 0} Integer.MIN_VALUE Integer Integer.MIN_VALUE 0 for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			v[i] = sc.nextInt();
		} {
			v[i] = sc.nextInt();
		} v[i] = sc.nextInt() v[i] v i sc.nextInt() sc.nextInt sc for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			c[i] = sc.nextInt();
		} {
			c[i] = sc.nextInt();
		} c[i] = sc.nextInt() c[i] c i sc.nextInt() sc.nextInt sc pickGem(0, v, c, 0, 0, res) pickGem 0 v c 0 0 res System.out.println(res[0]) System.out.println System.out System System.out res[0] res 0 String[] args args private static void pickGem(
			int pos,
			int[] values,
			int[] costs,
			int x,
			int y,
			int[] res) {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	} pickGem {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	} if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		} pos == values.length pos values.length values values.length {
			res[0] = Math.max(res[0], x - y);
		} res[0] = Math.max(res[0], x - y) res[0] res 0 Math.max(res[0], x - y) Math.max Math res[0] res 0 x - y x y {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		} pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res) pickGem pos + 1 pos 1 values costs x + values[pos] x values[pos] values pos y+ costs[pos] y costs[pos] costs pos res pickGem(pos + 1, values, costs, x, y, res) pickGem pos + 1 pos 1 values costs x y res int pos pos int[] values values int[] costs costs int x x int y y int[] res res static class FastReader {
	    BufferedReader br;
	    StringTokenizer st;
	
	    public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    }
	  
	    String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    }
	
	    int nextInt() {
	      return Integer.parseInt(next());
	    }
	
	    long nextLong() {
	      return Long.parseLong(next());
	    }
	
	    double nextDouble() { 
	      return Double.parseDouble(next());
	    }
	
	    String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      }
	  } FastReader BufferedReader br; br StringTokenizer st; st public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    } FastReader {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    } br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    } next { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    } while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      } st == null || !st.hasMoreElements() st == null st null !st.hasMoreElements() st.hasMoreElements() st.hasMoreElements st {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      } try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        } catch (IOException  e) {
	          e.printStackTrace();
	        } IOException  e {
	          e.printStackTrace();
	        } e.printStackTrace() e.printStackTrace e {
	          st = new StringTokenizer(br.readLine());
	        } st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st int nextInt() {
	      return Integer.parseInt(next());
	    } nextInt {
	      return Integer.parseInt(next());
	    } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next long nextLong() {
	      return Long.parseLong(next());
	    } nextLong {
	      return Long.parseLong(next());
	    } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next double nextDouble() { 
	      return Double.parseDouble(next());
	    } nextDouble { 
	      return Double.parseDouble(next());
	    } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      } nextLine {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      } String str = ""; str "" try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        } catch (IOException e) {
	            e.printStackTrace();
	        } IOException e {
	            e.printStackTrace();
	        } e.printStackTrace() e.printStackTrace e {
	            str = br.readLine();
	        } str = br.readLine() str br.readLine() br.readLine br return str; str public class Main {
	private static final int MOD = (int)Math.pow(10, 9);
	public static void main(String[] args) {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	}
	
	private static void pickGem(
			int pos,
			int[] values,
			int[] costs,
			int x,
			int y,
			int[] res) {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	}
	
    static class FastReader {
	    BufferedReader br;
	    StringTokenizer st;
	
	    public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    }
	  
	    String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    }
	
	    int nextInt() {
	      return Integer.parseInt(next());
	    }
	
	    long nextLong() {
	      return Long.parseLong(next());
	    }
	
	    double nextDouble() { 
	      return Double.parseDouble(next());
	    }
	
	    String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      }
	  }
} public class Main {
	private static final int MOD = (int)Math.pow(10, 9);
	public static void main(String[] args) {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	}
	
	private static void pickGem(
			int pos,
			int[] values,
			int[] costs,
			int x,
			int y,
			int[] res) {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	}
	
    static class FastReader {
	    BufferedReader br;
	    StringTokenizer st;
	
	    public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    }
	  
	    String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    }
	
	    int nextInt() {
	      return Integer.parseInt(next());
	    }
	
	    long nextLong() {
	      return Long.parseLong(next());
	    }
	
	    double nextDouble() { 
	      return Double.parseDouble(next());
	    }
	
	    String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      }
	  }
} Main

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class Main {
	private static final int MOD = (int)Math.pow(10, 9);
	public static void main(String[] args) {
		FastReader sc = new FastReader();
		int n = sc.nextInt();
		int[] v = new int[n];
		int[] c = new int[n];
		int[] res = {Integer.MIN_VALUE, 0};
		
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		pickGem(0, v, c, 0, 0, res);
		System.out.println(res[0]);
	}
	
	private static void pickGem(
			int pos,
			int[] values,
			int[] costs,
			int x,
			int y,
			int[] res) {
		if (pos == values.length) {
			res[0] = Math.max(res[0], x - y);
		} else {
			pickGem(pos + 1, values, costs, x + values[pos], y+ costs[pos], res);
			pickGem(pos + 1, values, costs, x, y, res);
		}
	}
	
    static class FastReader {
	    BufferedReader br;
	    StringTokenizer st;
	
	    public FastReader() {
	      br = new BufferedReader(new InputStreamReader(System.in));
	    }
	  
	    String next() { 
	      while (st == null || !st.hasMoreElements()) {
	        try {
	          st = new StringTokenizer(br.readLine());
	        } catch (IOException  e) {
	          e.printStackTrace();
	        }
	      }
	      return st.nextToken();
	    }
	
	    int nextInt() {
	      return Integer.parseInt(next());
	    }
	
	    long nextLong() {
	      return Long.parseLong(next());
	    }
	
	    double nextDouble() { 
	      return Double.parseDouble(next());
	    }
	
	    String nextLine() {
	      String str = "";
	        try{
	            str = br.readLine();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	        return str;
	      }
	  }
}
