规则Rules：
标准数独基础上，任意两个在线条上相邻的单元格，其中一格必定是另一格的倍数。
Classic rules applied. Additionally, each two numbers next on line, one is the multiple of the another one.
◆在线涂鸦 Draw it Online
◆在线做 Do it by CTC
◆在线做 Do it by Penpa
