=SI(LIGNES($3:3)>NB.SI(BaseA1;F$3)+NB.SI(BaseB1;F$3);"";INDEX(INDIRECT("Base"&CAR(65+(LIGNES($3:3)>NB.SI(BaseA1;F$3)))&2);PETITE.VALEUR(SI(INDIRECT("Base"&CAR(65+(LIGNES($3:3)>NB.SI(BaseA1;F$3)))&1)=F$3;LIGNE(INDIRECT("1:"&LIGNES(INDIRECT("Base"&CAR(65+(LIGNES($3:3)>NB.SI(BaseA1;F$3)))&1)))));LIGNES($3:3)-(LIGNES($3:3)>NB.SI(BaseA1;F$3))*NB.SI(BaseA1;F$3))))