又一个不会做的题目，请教（跟数学有关系）：Which day of the week appears more often as the first day of a year, Saturday or Sunday? Please prove it. Thank you!

行，平时就写个program来数数，考试就大大方方开天窗了. 当然，时间允许的话，还是可以考虑把400年都列出来的。。。。 谢了 ^_^