код на руби
n = 0 for i in 10..1000000 dec = i.to_s(10) # hex = i.to_s(16) bin = i.to_s(2) if dec == dec.reverse and bin == bin.reverse n += 1 p [dec, bin] end end p n ["33", "100001"] ["99", "1100011"] ["313", "100111001"] ["585", "1001001001"] ["717", "1011001101"] ["7447", "1110100010111"] ["9009", "10001100110001"] ["15351", "11101111110111"] ["32223", "111110111011111"] ["39993", "1001110000111001"] ["53235", "1100111111110011"] ["53835", "1101001001001011"] ["73737", "10010000000001001"] ["585585", "10001110111101110001"] 14ответ 14
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Преимущества житья в огороде/деревне