C11111333133313232233133313331333133313231313131211113313111133121   >>    C1111133313331323223313331333133313331323131313121111331311113312   <<    C11111333133313232233133313331333133313231313131211113313111133123   >>      C11111333133313232233133313331333133313231313131211113313111133122   >>