Sumif value ignore two cell value

Hi Excel Forum.

I want sumif value excluding two cells.(A11 and A19)

Data:

Part Qty

A1 6925283 1
A2 6021309 1
A3 BS5-24P 1
A4 AC5R-24 1
A5 6253081 1
A6 6921080 1
A7 6071042 1
A8 6964076 1
A9 6215251 1
A10 6719233 1(Ignore Value)
A11 100-280 1
A12 FSG6300 1
A13 6254606 1
A14 6253930 1
A15 1477H 1
A16 1700000 1
A17 6243855 1
A18 108-109 2(Ignore Value)
A19 6925159 4

Desired Result:

Part Desired Results

G4 AC5R-24 1
G5 6253081 1
G6 6921080 1
G7 6071042 1
G7 6719233 0(Desired Results)
G8 6241550 20
G9 6246857 15
G10 6941084 1
G11 108-109 0(Desired Results)

Sum 40.

File attached.please help me.