B33113313132313113313223313331323133313221211331333132322212233121   >>    B3311331313231311331322331333132313331322121133133313232221223312   <<    B33113313132313113313223313331323133313221211331333132322212233123   >>      B33113313132313113313223313331323133313221211331333132322212233122   >>