A banner program writes large letters by using characters instead of pixels. Suppose that the banner program stores the definition of each letter in a separate file and takes advantage of symmetries to reduce the files's sizes. For example, the following files define the letters 'A', 'B' and 'C', which are representative of all cases of symmetry. The font is "misc-10x20".VERTICAL NONE HORIZONTAL The letter A The letter B The letter C 5 9 9 14 14 8 10 10 10 20 20 20 ----- --------- --------- ----+ -+++++--- ---++++-- ---++ -++--++-- --++--++- --++- -++---++- -++----++ --++- -++---++- -++------ -++-- -++---++- -++------ -++-- -++--++-- -++------ -++-- -++++++-- -++------ -++++ -++---++- -++-- -++----++ -++-- -++----++ -++-- -++----++ -++-- -++---++- -++-- -++++++--The first line defines the symmetry. The second is a comment. The 3rd and 4th lines define the numbers of columns and rows of the file, e.g., in the letter 'A' file there are 5 columns and 14 rows. The 5th and 6th define the size of the complete letter. Complete letters are represented in a 10 by 20 matrix.Design, code and test a banner program that uses a Template Method pattern to construct a complete letter from its definition. The skeleton algorithm is specialized for letters with a vertical axis of symmetry (like 'A'), horizontal axis (like 'C' or no symmetry (like 'B').