+----------------+----------------+----------------+----------------+----------------+-------------+
|~~~    a     ~~~|~~~    b     ~~~|~~~    c     ~~~|~~~    d     ~~~|~~~    e     ~~~|~~~   f   ~~~|
+----------------+----------------+----------------+----------------+----------------+-------------+
|~~~    g     ~~~|~~~    h     ~~~|~~~    i     ~~~|~~~    j     ~~~|~~~    k     ~~~|~~~   l   ~~~|
+----------------+----------------+----------------+----------------+----------------+-------------+