规则Rules：
填入1~4，使得每行，列，涂色宫，以及每条弯曲的曲线连结起来的单元格内数字不重复。
Write 1~4, make the digits appear per once in each Row, Column, coloerd Boxes and bent Rows indicated by light curved lines.
◆例题 Example
◆在线涂鸦 Draw it Online
◆在线做 Do it by CTC
◆在线做 Do it by Penpa
