C11111333133313232233133313331333133313231313131211113313221333132313221   >>    C1111133313331323223313331333133313331323131313121111331322133313231322   <<    C11111333133313232233133313331333133313231313131211113313221333132313223   >>      C11111333133313232233133313331333133313231313131211113313221333132313222   >>