import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int a = in.nextInt();
            String s = "";
            while (a > 0) {
                if (a % 2 == 0) {
                    s += "0";
                } else {
                    s += "1";
                }
                a = a / 2;
            }
            String[] c = s.split("0");
            int sum = 1;
            for (int i = 0; i < c.length; i++) {
                if (sum < c[i].length()) {
                    sum = c[i].length();
                }
            }
            System.out.println(sum);
        }
    }
}