B33113313132313113313223313331323133313221211331333133313231121331   >>    B3311331313231311331322331333132313331322121133133313331323112133   <<    B33113313132313113313223313331323133313221211331333133313231121333   >>      B33113313132313113313223313331323133313221211331333133313231121332   >>