C111123313331323113313331333133313231323133312111133112211232313111221   >>    C11112331333132311331333133313331323132313331211113311221123231311122   <<    C111123313331323113313331333133313231323133312111133112211232313111223   >>      C111123313331323113313331333133313231323133312111133112211232313111222   >>