B33113313132313113313223313331323133313223313231333132313311232312312121   >>    B3311331313231311331322331333132313331322331323133313231331123231231212   <<    B33113313132313113313223313331323133313223313231333132313311232312312123   >>      B33113313132313113313223313331323133313223313231333132313311232312312122   >>