C1111133313331323223313331333133313331333232233133112111113222211   >>    C111113331333132322331333133313331333133323223313311211111322221   <<    C1111133313331323223313331333133313331333232233133112111113222213   >>      C1111133313331323223313331333133313331333232233133112111113222212   >>