Function that give me the nth large number of the two sheets, with criteria

Hi,

I would like your help to solve this problem. I have two sheets: A and B.

In sheet A I have:

A1 = JAN
A2 = JAN
A3 = FEV
A4 = FEV
B1 = 1
B2 = 2
B3 = 3
B4 = 4

In sheet B I have:

A1 = JAN
A2 = JAN
A3 = FEV
A4 = FEV
B1 = 10
B2 = 20
B3 = 30
B4 = 40

So, I would like to have a function that give me the nth large number of the two sheets, with criteria.

For example, I tried this formula but doesnt work: =LARGE((A:B!$A$1:$A$4="JAN")*(A:B!$B$1:$B$4);1)

Any thoughts?