C3123213231313231312323132313231333131323223313232213113313233313231331121221   >>    C312321323131323131232313231323133313132322331323221311331323331323133112122   <<    C3123213231313231312323132313231333131323223313232213113313233313231331121223   >>      C3123213231313231312323132313231333131323223313232213113313233313231331121222   >>