by 1 by 2 by 3.5 by 4 by 5.5 by 5.6 by 6 by 7 by 8 by 9 by 10 by 11 by 12.5 by 12 by 13 by 14 by 15 by 16 by 17 by 18 by 19 by 20 by 21 by 22 by 23 by 24.5 by 24 by 25 by 26 by 27 by 28 by 29 by 30 by 31 by 32 by 33 by 34 by 35 by 36 by 37 by 38 by 39 by 40 by 41 by 42 by 43 by 44 by 45 by 46 by 47 by 48 by 49 by 50 by 51 by 52 by 53 by 54 by 55 by 56 by 57 by 58 by 59 by 60 by 61 by 62 by 63