题解 | 字符串分隔

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);
        StringBuilder firstLine = new StringBuilder(in.nextLine());
        int firstLineLen = firstLine.length();
        for (int i=0; i<firstLineLen; i+=8) {
            if(i+8<firstLineLen){
                System.out.println(firstLine.substring(i,i+8));
            }
            else {
                firstLine.append("00000000");
                System.out.print(firstLine.substring(i,i+8));
            }
        }
    }
}