import java.util.Scanner;

public class Main
{
    public static void main(String[] args) 
    {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    }

    
} import java.util.Scanner; Scanner java.util public class Main
{
    public static void main(String[] args) 
    {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    }

    
} Main public static void main(String[] args) 
    {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    } main {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int n=sc.nextInt(); n sc.nextInt() sc.nextInt sc int cnt=-1 cnt -1 1 ans=0; ans 0 for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        } int i=1; int i=1; i 1 i<=n i n i++ i++ i {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        } {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        } int temp=i; temp i int cnt1=0; cnt1 0 while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            } temp%2==0 temp%2 temp 2 0 {
                temp/=2;
                cnt1++;
            } temp/=2 temp 2 cnt1++ cnt1 if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            } cnt1>=cnt cnt1 cnt {
                cnt=cnt1;
                ans=i;
            } cnt=cnt1 cnt cnt1 ans=i ans i System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main
{
    public static void main(String[] args) 
    {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    }

    
} public class Main
{
    public static void main(String[] args) 
    {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    }

    
} Main
import java.util.Scanner;

public class Main
{
    public static void main(String[] args) 
    {
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int cnt=-1,ans=0;
       for(int i=1; i<=n; i++ )
       {
            int temp=i;
            int cnt1=0;
            while(temp%2==0)
            {
                temp/=2;
                cnt1++;
            }
            if(cnt1>=cnt)
            {
                cnt=cnt1;
                ans=i;
            }
        }
        System.out.println(ans);         
    }

    
}