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 scanner = new Scanner(System.in); while (scanner.hasNextInt()){ int n = scanner.nextInt(); int count = 0; int maxcount = 0; String s = Integer.toBinaryString(n); for (int i = 0; i < s.length(); i++) { if (s.charAt(i)=='1'){ count++; }else { maxcount = Math.max(count,maxcount); count = 0; } } System.out.println(Math.max(count,maxcount)); } } }