.= .- := =:=
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<=< <<= <==    <=> => ==> =>> >=>
    >>= >>- >-     -< -<< =<<
        <~~ <~ ~~~ ~> ~~>

     <<< << <= <>  >= >> >>>
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            <+ <+> +>
            <* <*> *>

       \\ \\\ {- -} // ///
          /* /** **/ */ 
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      0xF  9:45  m-x *ptr

       ;; ;;; :: ::: !! !!!
       ?? ??? %% %%% && &&& 
       || ||| .. ... ..< []
       -- --- ++ +++ ** ***

          ~= ~- -~ =~ ~@
        ^= ?= /= /== |= ||=
           ## ### ####
         #{ #[ #( #? #_ #_(