
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.StringTokenizer;

public class Main {
	private static final int MOD = (int)Math.pow(10, 9) + 7;
	public static void main(String[] args) {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(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.Arrays; Arrays java.util import java.util.StringTokenizer; StringTokenizer java.util public class Main {
	private static final int MOD = (int)Math.pow(10, 9) + 7;
	public static void main(String[] args) {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(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) + 7; MOD (int)Math.pow(10, 9) + 7 (int)Math.pow(10, 9) Math.pow Math 10 9 7 public static void main(String[] args) {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(res);
	} main {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(res);
	} FastReader sc = new FastReader(); sc new FastReader() int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int res = 0; res 0 if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        } n >= 64 && n <= 100 n >= 64 n 64 n <= 100 n 100 {
        	res = 64;
        } res = 64 res 64 if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        } n >= 32 && n <= 63 n >= 32 n 32 n <= 63 n 63 {
        	res = 32;
        } res = 32 res 32 if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        } n >= 16 && n <= 31 n >= 16 n 16 n <= 31 n 31 {
        	res = 16;
        } res = 16 res 16 if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        } n >= 8 && n <= 15 n >= 8 n 8 n <= 15 n 15 {
        	res = 8;
        } res = 8 res 8 if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        } n >= 4 && n <= 7 n >= 4 n 4 n <= 7 n 7 {
        	res = 4;
        } res = 4 res 4 if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        } n >= 2 && n <= 3 n >= 2 n 2 n <= 3 n 3 {
        	res = 2;
        } res = 2 res 2 {
        	res = 1;
        } res = 1 res 1 System.out.println(res) System.out.println System.out System System.out res String[] args args 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) + 7;
	public static void main(String[] args) {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(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) + 7;
	public static void main(String[] args) {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(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.Arrays;
import java.util.StringTokenizer;

public class Main {
	private static final int MOD = (int)Math.pow(10, 9) + 7;
	public static void main(String[] args) {
		FastReader sc = new FastReader();
      	int n = sc.nextInt();
      	int res = 0;
      	if (n >= 64 && n <= 100) {
        	res = 64;
        } else if (n >= 32 && n <= 63) {
        	res = 32;
        } else if (n >= 16 && n <= 31) {
        	res = 16;
        } else if (n >= 8 && n <= 15) {
        	res = 8;
        } else if (n >= 4 && n <= 7) {
        	res = 4;
        } else if (n >= 2 && n <= 3) {
        	res = 2;
        } else {
        	res = 1;
        }
 		System.out.println(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;
	      }
	  }
}
