some lines of code are deleted in the method col_priority.
some lines of code are deleted in the method col_priority.

marbros/Programing-Memories,marbros/Programing-Memories,marnig/Programing-Memories,marnig/Programing-Memories,marbros/Programing-Memories,marnig/Programing-Memories,marbros/Programing-Memories,marbros/Programing-Memories,marnig/Programing-Memories,marnig/Programing-Memories