=SIERREUR(INDEX($B$4:$B$16;EQUIV(GRANDE.VALEUR(SI($C$4:$C$16>0;$C$4:$C$16-LIGNE($C$4:$C$16)/"1E9");COLONNES($B19:B19));SI($C$4:$C$16>0;$C$4:$C$16-LIGNE($C$4:$C$16)/"1E9");0));"")
=SIERREUR(INDEX($B$4:$B$16;EQUIV(GRANDE.VALEUR(SI($C$4:$C$16=0;$C$4:$C$16-LIGNE($C$4:$C$16)/"1E9");COLONNES($B20:B20));SI($C$4:$C$16=0;$C$4:$C$16-LIGNE($C$4:$C$16)/"1E9");0));"")
=SIERREUR(INDEX($B$4:$B$16;EQUIV(GRANDE.VALEUR(SI($C$4:$C$16<0;$C$4:$C$16-LIGNE($C$4:$C$16)/"1E9");COLONNES($B21:B21));SI($C$4:$C$16<0;$C$4:$C$16-LIGNE($C$4:$C$16)/"1E9");0));"")