C11111333133313232233133313331333133313231313131211113313331333313221   >>    C1111133313331323223313331333133313331323131313121111331333133331322   <<    C11111333133313232233133313331333133313231313131211113313331333313223   >>      C11111333133313232233133313331333133313231313131211113313331333313222   >>