摘要: Absent minded Masha got set of n cubes for her birthday. At each of 6 faces of each cube, there is exactly one digit from 0 to 9. Masha became interes 阅读全文
posted @ 2017-11-23 20:05 Zireael 阅读(250) 评论(0) 推荐(0) 编辑