C22121233131323223313233313231133132333133313113313231313232221   >>    C2212123313132322331323331323113313233313331311331323131323222   <<    C22121233131323223313233313231133132333133313113313231313232223   >>      C22121233131323223313233313231133132333133313113313231313232222   >>