B331133131323131133132233133313231323133313132322331311331323132313221231221   >>    B33113313132313113313223313331323132313331313232233131133132313231322123122   <<    B331133131323131133132233133313231323133313132322331311331323132313221231223   >>      B331133131323131133132233133313231323133313132322331311331323132313221231222   >>