even(6)/odd(3)                      odd(9)/even(4)                             Even(10)/even(4)                            Odd(11)/Odd(3)
p2+p2len            -3-2-1          p2+p2len                  -4-3-2-1         p2+p2len                    -4-3-2-1        p2+p2len                  -4-3-2-1
p2                  +0+1+2          p2                        +0+1+2+3         p2                          +0+1+2+3        p2                        +0+1+2+3
p1+p1len-6-5-4-3-2-1                p1+p1len-9-8-7-6-5-4-3-2-1                 p1+p1len-0-9-8-7-6-5-4-3-2-1                p1+p1len-9-8-7-6-5-4-3-2-1
p1      +0+1+2+3+4+5                p1      +0+1+2+3+4+5+6+7+8                 p1      +0+1+2+3+4+5+6+7+8                  p1      +0+1+2+3+4+5+6+7+8
         0 1 2 3 4 5 6 7 8                   0 1 2 3 4 5 6 7 8                          0 1 2 3 4 5 6 7 8                           0 1 2 3 4 5 6 7 8
        [a b c d e f 1 2 3] temp            [a b c d e f g h i 1 2 3 4] temp           [a b c d e f g h i j 1 2 3 4] temp          [a b c d e f g h i j k 1 2 3] temp
                    [1]>>>>>>[1]                              [1]>>>>>>>>[1]                               [1]>>>>>>>[1]                                 [1]>>>>>>[1]
              [d]>>>[d]                               [f]>>>>>[f]                                  [g]>>>>>[g]                                     [i]>>>[i]
        [a]>>>[a]                             [b]>>>>>[b]                                  [c]>>>>>[c]                                       [f]>>>[f]
        [1]<<<<<<<<<<<<<<<<<<[1]              [2]<<<<<<<<<<<<<<<[2]                        [3]<<<<<<<<<<<<<<<<<[3]                     [c]>>>[c]
                      [2]>>>>[2]                        [g]>>>>>[g]                                    [i]>>>>>[i]                     [2]<<<<<<<<<<<<<<<<<[2]
                [e]>>>[e]                       [c]>>>>>[c]                                    [e]>>>>>[e]                                           [j]>>>[j]
          [b]>>>[b]                             [3]<<<<<<<<<<<<<<<[3]                  [a]>>>>>[a]                                             [g]>>>[g]
          [2]<<<<<<<<<<<<<<<<[2]                          [h]>>>>>[h]                  [1]<<<<<<<<<<<<<<<<<<<<<<<<<<<[1]                 [d]>>>[d]
                        [3]>>[3]                  [d]>>>>>[d]                                                [2]>>>>>[2]           [a]>>>[a]
                  [f]>>>[f]                       [4]<<<<<<<<<<<<<<<[4]                              [h]>>>>>[h]                   [1]<<<<<<<<<<<<<<<<<<<<<<<<<<<<[1]
            [c]>>>[c]                                       [i]>>>>>[i]                      [d]>>>>>[d]                                                     [3]>>[3]
            [3]<<<<<<<<<<<<<<[3]                    [e]>>>>>[e]                              [4]<<<<<<<<<<<<<<<<<[4]                                   [k]>>>[k]
        [1 2 3 a b c d e f]                 [a]>>>>>[a]                                                  [j]>>>>>[j]                             [h]>>>[h]
                                            [1]<<<<<<<<<<<<<<<<<<<<<<<<<<[1]                     [f]>>>>>[f]                               [e]>>>[e]
                                            [1 2 3 4 a b c d e f g h i]                  [b]>>>>>[b]                                 [b]>>>[b]
                                                                                         [2]<<<<<<<<<<<<<<<<<<<<<<<<<[2]             [3]<<<<<<<<<<<<<<<<<<<<<<<<<<[3]
                                                                                       [1 2 3 4 a b c d e f g h i j]               [1 2 3 a b c d e f g h i j k]