C1111133313331323223313331333133313311211111211331333131211111212211332321   >>    C111113331333132322331333133313331331121111121133133313121111121221133232   <<    C1111133313331323223313331333133313311211111211331333131211111212211332323   >>      C1111133313331323223313331333133313311211111211331333131211111212211332322   >>