Post-holiday

Moscow State University, a military department, the height of the stagnation. The main entertainment of the student - a drink and a game of cards to play. Commissar him in hell do not need, but you can not be absent, this department is not steeper. In the courtyard on February 24th. The audience, which without cause kicking every day, just no. At the blackboard Colonel Boyko. He was really bad, but he keeps.

12 a.m. The door opens, and there is a green hangover student: - Allow reported late in?
 Colonel Boyko long considering the clock hanging on the wall, then his wrist, lip-synching, counting on how many students was late when classes start at 8:30. Then, barely opened his dry lips, says:
 - This is not a latecomer, and no-show! What can explain this?
 The student thinks for a long time, recalled yesterday and says:
 - Tm-ni-ni Colonel, well, yesterday was February 23 ...
 Colonel (thoughtfully):
 - So after all I had!
 Student ponders for a long time, trying to understand why the colonel, too, had the same number and, if it is true, as the Colonel all got to work. After a long pause, he finally realizes and says:
 - Well, you did a man more experienced!
 Colonel breaks into a smile and said:
 - Sit down, you want some water?