B33113313132313113313223313331323133313223313231333131122112323331123232212131   >>    B3311331313231311331322331333132313331322331323133313112211232333112323221213   <<    B33113313132313113313223313331323133313223313231333131122112323331123232212133   >>      B33113313132313113313223313331323133313223313231333131122112323331123232212132   >>