Hi, welcome to the forum

Im not sure if that file is protected or what (I dont use google docs much), but I am unable to type anything into it.

Besides, please upload your workbook to the forum, not all members are able - or willing - to open files like that.

THis will kinda do what you want, but you need to enter the values into the formula manually...
G
H
I
J
2
1
3
 [BGCOLOR=#FFFFFF]6[/BGCOLOR]
3
2
3
4
3
4
5
4
5
6
5
6
7
6
1

J2=SUM(SUMIF(H2:H10,{3,4},G2:G10))