=IF((D11=0)*(COUNTIF(D10:D12,0)=1)*COUNT(0/D9:D13)>2,IF(MMULT(COUNTIF(OFFSET(D11,LOOKUP(1,0/(D$1:D10=0)-ROW(D11),ROW(D$1:D10))-ROW(D11)+1,,ROW(D11)-LOOKUP(1,0/(D$1:D10=0)-ROW(D11),ROW(D$1:D10))-1+MATCH(0,D12:D$100,)),{1,2}),{1;-1})>=0,8,-8),NA())
