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  1. s=input('','s');m=3-mod(numel(s)-1,4);s=reshape([s zeros(1,m)]',4,[])';t=char(mod(floor(bsxfun(@rdivide,s*256.^[3:-1:0]',85.^[4:-1:0])),85)+33)';t=t(:)';['<~' t(1:end-m) '~>']
  2.  
Success #stdin #stdout #stderr 0.17s 65048KB
stdin
code golf\r

stdout
Standard output is empty
stderr
error: input: reading user-input failed!