规则Rules：
锯齿数独基础上，第X行/列中相邻的两个数字，若其和为X则标黑点，其差为X则标白点。所有的点都已经给出。
Irregular rules applied. Additionally, in Row or Column X, two adjacent cells sum to X are marked with a black dot, two adjacent cells with difference X are marked with a white dot. All the dots are given.
