B33113313132313113313223313331323133313223313231333132313221323131133131121   >>    B3311331313231311331322331333132313331322331323133313231322132313113313112   <<    B33113313132313113313223313331323133313223313231333132313221323131133131123   >>      B33113313132313113313223313331323133313223313231333132313221323131133131122   >>