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79 & 81, or any whole number from 1 to 79 with any whole number greater than 81.
Range is the difference of the highest and lowest number of a set. The highest number is 92, and the lowest is 56. 92 - 56 = 36.
9*9=81
81 x 56 = 4536
78 + 79 + 80 + 80 + 81 + 81 = 479