C1111233133313231133133313311211113313231323223313331322132331221   >>    C111123313331323113313331331121111331323132322331333132213233122   <<    C1111233133313231133133313311211113313231323223313331322132331223   >>      C1111233133313231133133313311211113313231323223313331322132331222   >>