B331133131323131133132233133313231333132212113313331333133313331323113313221231   >>    B33113313132313113313223313331323133313221211331333133313331333132311331322123   <<    B331133131323131133132233133313231333132212113313331333133313331323113313221233   >>      B331133131323131133132233133313231333132212113313331333133313331323113313221232   >>