C3132121111133313233121111331333133313331333133313331333132313331322123232311   >>    C313212111113331323312111133133313331333133313331333133313231333132212323231   <<    C3132121111133313233121111331333133313331333133313331333132313331322123232313   >>      C3132121111133313233121111331333133313331333133313331333132313331322123232312   >>