import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            int num = sc.nextInt();
            String binaryString = Integer.toBinaryString(num);
            int max = 0;
            int sum = 0;
            for (int i = 0; i < binaryString.length(); i++) {
                if (binaryString.charAt(i) == '1') {
                    sum++;
                    max = Math.max(max, sum);
                } else {
                    sum = 0;
                }
            }
            System.out.println(max);
        }
        sc.close();
    }

}