=SI(LIGNES($1:1)<=NBVAL(B$4:B$999);INDEX(B$4:B$999;LIGNES($1:1));SI(LIGNES($1:1)<=NBVAL(B$4:B$999)+NBVAL(D$4:D$999);INDEX(D$4:D$999;LIGNES($1:1)-NBVAL(B$4:B$999));SI(LIGNES($1:1)<=NBVAL(B$4:B$999)+NBVAL(D$4:D$999)+NBVAL(F$4:F$999);INDEX(F$4:F$999;LIGNES($1:1)-NBVAL(B$4:B$999)-NBVAL(D$4:D$999));"")))