5 x 2 , 5 x 1, 2 x 1, , 5 x 5, 4x 5, 5 x 6, , 4 x 3, 12 x 3, 4 x 4, , 2 x 2, 2 x 7, 7 x 7, , 3 x 1, 1 x 3, 3 x 3, , 3 rows and 6 columns, 6 rows and 3 columns, 3 rows and 18 columns, , 3 x 5, 2 x 4, 4 x 4 , , 3 x 3 =9, 5 x 5=25, 4 x 4=16, , 3 x 5, 5 x 5, 2 x 3, , 4 groups of 3, 3 groups of 4, 3 groups of 2.

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