C3132121111133313233121111331333133313331333133313331211113313331323221221   >>    C313212111113331323312111133133313331333133313331333121111331333132322122   <<    C3132121111133313233121111331333133313331333133313331211113313331323221223   >>      C3132121111133313233121111331333133313331333133313331211113313331323221222   >>