0 and 00 and more

[ilyazhito]

Statistical software cannot distinguish between 0 and 00. Surprisingly enough, scoreboards can distinguish between someone wearing 0 and 00.

In that regard, I would allow numbers 6 and greater, as long as there is a systematic way of signaling them (either turning the hand sideways, like lacrosse, or showing the tens digit, followed by the ones digit, each with both hands if necessary, like FIBA).