B331133131323131133132233133313233313221131211113313331333131211113313233221311   >>    B33113313132313113313223313331323331322113121111331333133313121111331323322131   <<    B331133131323131133132233133313233313221131211113313331333131211113313233221313   >>      B331133131323131133132233133313233313221131211113313331333131211113313233221312   >>