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by Zecc 1178 days ago
On the one hand I wrote down the whole thing easily in (I think) less than 30 seconds.

On the other hand I wrote Z25 (uh-oh) and I couldn't spot my mistake until I had the computer write it down too. All the letters were there. But I wrote down 16 twice and I didn't spot the error even afterwards because I was too focused on the letters.