danwang

const nPalindromes = length =>
  parseInt(
    "4" +
      "9".repeat(length - 1) +
      "5" +
      "0".repeat(Math.floor((length - 1) / 2))
  );

nag4

# -*- coding: utf-8 -*- 

from PIL import Image
import os
import shutil

# exists src_dir/hoge.jpg, fuga.png, etc...
src_dir = "/Users/name/hoge/"
# create dst_dir/yyyymmdd/
dst_dir = "/Users/name/fuga/"