C132233133112121111331333133313231333133313231323223311211331333112121   >>    C13223313311212111133133313331323133313331323132322331121133133311212   <<    C132233133112121111331333133313231333133313231323223311211331333112123   >>      C132233133112121111331333133313231333133313231323223311211331333112122   >>