简单做法：

/*@author: xbd
*/
import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String str = sc.nextLine();
        int cnt = (8 - str.length() % 8) % 8;
        StringBuilder sb = new StringBuilder(str);
        while(sb.length() > 8){
                System.out.println(sb.substring(0,8));                
                sb.delete(0, 8);
        }
        if(sb.length() != 0 && sb.length() != 8)
        while(cnt-- != 0)
            sb.append('0');
  
        System.out.println(sb.toString());
    }
}