B331133131323131133132233133313232213232233132313232233133313221231   >>    B33113313132313113313223313331323221323223313231323223313331322123   <<    B331133131323131133132233133313232213232233132313232233133313221233   >>      B331133131323131133132233133313232213232233132313232233133313221232   >>