B33113313132313113313223313331323133313111111331323223313111211   >>    B3311331313231311331322331333132313331311111133132322331311121   <<    B33113313132313113313223313331323133313111111331323223313111213   >>      B33113313132313113313223313331323133313111111331323223313111212   >>