Morris' Blog 我在摸索我存在的意義、生命的意義、內涵及價值。 沒有真正神手般的厲害，套用模式是大部分的情況。 沒那麼厲害的我存在的意義為何，襯托出神的存在？ 有時候不能怪別人不給我機會，我已經開始省思， 為什麼我沒有給別人機會的原因，而是全要靠別人。 有時候我認為我與眾不同，那是因為我做不到很多人能辦到的事情。 我聽不到、玩不起來、說得不夠明瞭、理解得不夠多， 我缺少的語文能力，就是一切一切無能的判定。 為此，我不曉得能做些對別人有幫助的事情。 我知道我自己是個不服輸的性格，但現在我不得不認輸。 我沒有能力，因此我必須認輸。 我到底來這世界作什麼？處處充滿不確定性， 而我總是無法出類拔萃，想當個一般人似乎也回不了頭了。 越強大的挑戰需要越強力的支持，而我的支持是什麼？ 最近嘗試與人談話，但都是失敗的結局，沒人能接受， 不需要言語，不需要溝通，一切所想都表達不出來。

49愛的鼓勵 6訂閱站台

Brother Arif is a great problemsetter. He loves grid. Also, he loves light. That's why the other problemsetters believe that asking him to throw a feast is always right. Unfortunately Brother Arif himself doesn't think so. Instead of all the naggings and reasons going on around him, he stays in his chair with dreamy eyes and lovingly thinks about newer ways of placing lights inside a 2D grid. Now, it's time to make your stand for the deprived problemsetters' right and force Brother Arif to their pleas.

Now, the problemsetters have all gathered inside a room. The floor of this room is shaped like a 2d Rectangular grid consisting of many cells. Any of the problemsetters can stand on a cell. A cell has enough place for only one people and everyone must occupy exactly one cell at a time. Brother Arif, standing on one of these cells, can move to one of the four adjacent cells just once or he may not move at all. He may not leave the grid, however. The other problemsetters are standing  on other cells. With the help of their new telecatching device, they can capture anyone standing at the same row or column irrespective to his distance. So, now you are given the positions of the problemsetters and are asked to figure out if Brother Arif can escape from getting captured (and thus throwing a huge party.)

Input

The input file has multiple test cases. Each test case begins with 3 integers, R (1<=R<=10000), C (1<=C<=10000) & N (1<=N<=2000). R &C are the number of rows & columns in the grid while N denotes the number of problemsetters present on the room. N + 1 lines follow the first line. Each of the next N lines has 2 integers, r (0 <= r < R) & c (0 <= c < C) , position of a problemsetter. For your reference, the upper left corner of the cell has (0,0) while the lower left one has (R-1, 0) and the lower right one has (R-1, C-1) co-ordinate. The last line gives the co-ordinate of Brother Arif in the same format. The last test case will be followed by a case with R = C = N = 0. This case should not be processed.

Output

For each test case, print a line. This line starts like, “Case X: “, where, X is the case number. After that print a string based on Brother Arif's destiny. If Brother Arif can find a cell where none else can catch him, print “Escaped again! More 2D grid problems!”. If someone can capture him no matter in which cell he goes, print “Party time! Let's find a restaurant!”

Problem Setter: Mohammad Mahmudur Rahman, Special Thanks: Sohel Hafiz