D233313133313221323132322331311112211232322331323132311221123232212321   >>    D23331313331322132313232233131111221123232233132313231122112323221232   <<    D233313133313221323132322331311112211232322331323132311221123232212323   >>      D233313133313221323132322331311112211232322331323132311221123232212322   >>