=======================
L0  L1  L2  L3  L4 |  v
=======================
A   c   e   g   i  |  0
                j  |  1
            h   i  |  2
                j  |  3
        ---------------
        f   g   i  |  4
                j  |  5
            h   i  |  6
                j  |  7
    -------------------
    d   e   g   i  |  8
                j  |  9
            h   i  | 10
                j  | 11
        ---------------
        f   g   i  | 12
                j  | 13
            h   i  | 14
                j  | 15
-----------------------
B   c   e   g   i  | 16
                j  | 17
            h   i  | 18
                j  | 19
        ---------------
        f   g   i  | 20
                j  | 21
            h   i  | 22
                j  | 23
    -------------------
    d   e   g   i  | 24
                j  | 25
            h   i  | 26
                j  | 27
        ---------------
        f   g   i  | 28
                j  | 29
            h   i  | 30
                j  | 31
=======================
