C1111133313331323223313331333133313331323223331211113313222322221   >>    C111113331333132322331333133313331333132322333121111331322232222   <<    C1111133313331323223313331333133313331323223331211113313222322223   >>      C1111133313331323223313331333133313331323223331211113313222322222   >>