SIFIR 1                SIFIR 2                SIFIR 3
1    X      1      =   1    X      2      =   1    X      3      =
2    X      1      =   2    X      2      =   2    X      3      =
3    X      1      =   3    X      2      =   3    X      3      =
4    X      1      =   4    X      2      =   4    X      3      =
5    X      1      =   5    X      2      =   5    X      3      =
6    X      1      =   6    X      2      =   6    X      3      =
7    X      1      =   7    X      2      =   7    X      3      =
8    X      1      =   8    X      2      =   8    X      3      =
9    X      1      =   9    X      2      =   9    X      3      =
10   X      1      =   10   X      2      =   10   X      3      =
11   X      1      =   11   X      2      =   11   X      3      =
12   X      1      =   12   X      2      =   12   X      3      =
         SIFIR 1                SIFIR 2                SIFIR 3
                                   5
1    X      4      =   1    X             =   1    X      6      =
            4                      5                      6
2    X             =   2    X             =   2    X             =
            4                      5                      6
3    X             =   3    X             =   3    X             =
            4                      5                      6
4    X             =   4    X             =   4    X             =
            4                      5                      6
5    X             =   5    X             =   5    X             =
            4                      5                      6
6    X             =   6    X             =   6    X             =
            4                      5                      6
7    X             =   7    X             =   7    X             =
            4                      5                      6
8    X             =   8    X             =   8    X             =
            4                      5                      6
9    X             =   9    X             =   9    X             =
            4                      5                      6
10   X             =   10   X             =   10   X             =
            4                      5                      6
11   X             =   11   X             =   11   X             =
            4                      5                      6
12   X             =   12   X             =   12   X             =
         SIFIR 1                SIFIR 2                SIFIR 3
1    X      7      =   1    X      8      =   1    X        9    =
            7                      8                    9
2    X             =   2    X             =   2    X             =
            7                      8                    9
3    X             =   3    X             =   3    X             =
            7                      8                    9
4    X             =   4    X             =   4    X             =
            7                      8                    9
5    X             =   5    X             =   5    X             =
            7                      8                    9
6    X             =   6    X             =   6    X             =
            7                      8                    9
7    X             =   7    X             =   7    X             =
            7                      8                    9
8    X             =   8    X             =   8    X             =
            7                      8                    9
9    X             =   9    X             =   9    X             =
            7                      8                    9
10   X             =   10   X             =   10   X             =
            7                      8                    9
11   X             =   11   X             =   11   X             =
            7                                           9
12   X             =   12   X      8      =   12   X             =
         SIFIR 1                SIFIR 2                SIFIR 3
           10                     11
1    X             =   1    X             =   1    X     12      =
           10                     11                     12
2    X             =   2    X             =   2    X             =
           10                     11                     12
3    X             =   3    X             =   3    X             =
           10                     11                     12
4    X             =   4    X             =   4    X             =
           10                     11                     12
5    X             =   5    X             =   5    X             =
           10                     11                     12
6    X             =   6    X             =   6    X             =
           10                     11                     12
7    X             =   7    X             =   7    X             =
           10                     11                     12
8    X             =   8    X             =   8    X             =
           10                     11                     12
9    X             =   9    X             =   9    X             =
           10                     11                     12
10   X             =   10   X             =   10   X             =
           10                     11                     12
11   X             =   11   X             =   11   X             =
           10                     11                     12
12   X             =   12   X             =   12   X             =