B33113313132313113313223313331323133313221211331333133313233113121   >>    B3311331313231311331322331333132313331322121133133313331323311312   <<    B33113313132313113313223313331323133313221211331333133313233113123   >>      B33113313132313113313223313331323133313221211331333133313233113122   >>