B33113313132313113313223313331323331323112331311221123232212131   >>    B3311331313231311331322331333132333132311233131122112323221213   <<    B33113313132313113313223313331323331323112331311221123232212133   >>      B33113313132313113313223313331323331323112331311221123232212132   >>