t could be 59 because 59 + 5 = 64 and 64 is a perfect square (8 x 8)
t could be 20 because 20 + 5 = 25 and 25 is a perfect square (5 x 5)
t could be 44 because 44 + 5 = 49 and 49 is a perfect square (7 x 7)
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