Merry Christmas 2021 by test

while(1>0)println((readLine grouped 4).fold("")((i,j)=>i+j.take(2)+j.drop(2).replace("#",".")))

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

To protect the system from spam, please input your favorite sport (hint: I believe its name must start with 'g', case insensitive)

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