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传送门 C. Star sky time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output The Cartesian coordinate system is set

点击打开链接 Anton likes to play chess. Also, he likes to do programming. That is why he decided to write the program that plays chess. However, he finds the game on 8 to 8 board to too simple, he uses

点击打开链接 Fat brother and Maze are playing a kind of special (hentai) game with two integers. All the digits of these two integers are in the range from 1 to 9. After they’ve got these two integer