Overview

Problem		  ORDERS	  PHONE		  PARITY	
		  ORDERS.PAS	  PHONE.PAS	  PARITY.PAS	
Source name	  ORDERS.C	  PHONE.C	  PARITY.C	
		  ORDERS.CPP	  PHONE.CPP	  PARITY.CPP	
Input file	  ORDERS.IN	  PHONE.IN	  PARITY.IN	
Output file	  ORDERS.OUT	  PHONE.OUT	  PARITY.OUT	
Time limit per test   20 seconds   20 seconds	  40 seconds	
Number of tests	  10		  10		  10		
Points per test	  2		  4		  4		


* The maximum total score for Round I is 100 points.
* The time for questions has been extended to the whole first hour of the contest.
* Testing can take place on slower computers than those
used during the competition, so the time limits should be taken
as informative only.
* Your programs will be compiled by `tpc' (Pascal) or `bcc -mlarge'
(C and C++), no special options will be set.
* If the time limit is exceeded, the output of the program
for the parti\-cular test case is not examined at all.