Mr. Vincent works in a door mat manufacturing company. One day, he designed a new door mat with the following specifications:
- Mat size must be N X M. (N is an odd natural number, and M is 3 times .)
- The design should have 'WELCOME' written in the center.
- The design pattern should only use |, . and - characters.
A single line containing the space separated values of N and M.
Output the design pattern.