规则Rules：
① 在白格内填入1~3，使得每行、列、宫内都是1~3不重复。每个区域内可能有一些空格不填入数字。
Write 1~3 in white cells, make numbers 1~3 no repeated in each Row/Column and Box. Each region may contain several blank cell with no numbers.
② 灰格为提示数，其中的数字表示其相邻格内所有数字的和（空白格视为没有数字；问号表示和是未知的）；其中的点数表明该处的和由几个数字相加得到（没有点数意味着其相邻格没有数字）。
The gery cells are clues. The numbers inside indicates the sum of all the numbers adjacent to it (regard blank cells as no numbers; The sum may be hidden as ?); The dots show how many numbers adds to this sum (no dots means no numbers adjacent to it).
*空白格不需要输入数字。It's no necessary to print anything in blank cells.
