B331133131323131133132233133313223313113313223313331323133313231313221   >>    B33113313132313113313223313331322331311331322331333132313331323131322   <<    B331133131323131133132233133313223313113313223313331323133313231313223   >>      B331133131323131133132233133313223313113313223313331323133313231313222   >>