If I have a 2 + 1 dimentional table to sumproduct, how do I use the Excel formula for it?

Table

Name Age Jan Feb Mar Apr May Jun
Jane 40 100 200 300 500 500 600
Jack 20 100 200 300 400 500 600
Jane 40 100 200 300 400 500 600
Jane 40 100 200 300 400 500 600
June 50 100 200 300 400 500 600

Results

Seach for the SUM of (Jane and 40 and Apr) = 1300.