C1111133313331323223313331333133313331333131211113313332231132311   >>    C111113331333132322331333133313331333133313121111331333223113231   <<    C1111133313331323223313331333133313331333131211113313332231132313   >>      C1111133313331323223313331333133313331333131211113313332231132312   >>