C1111233133313231133133313331333133313223313133313132313232233131231   >>    C111123313331323113313331333133313331322331313331313231323223313123   <<    C1111233133313231133133313331333133313223313133313132313232233131233   >>      C1111233133313231133133313331333133313223313133313132313232233131232   >>