C3132121111133313233121111331333133313331333133313331333132333133313222313221   >>    C313212111113331323312111133133313331333133313331333133313233313331322231322   <<    C3132121111133313233121111331333133313331333133313331333132333133313222313223   >>      C3132121111133313233121111331333133313331333133313331333132333133313222313222   >>