Month and year in different cells, display first and last day of month in different cells

[K0st4din]

Hi all,
I'm trying to make it so that in cell A4 I have a year (2023, 2024, etc. the years are selected with a drop-down menu. In cell B4, a month is selected in the same way (1,2,3, etc.). I'm trying in cell D4 to display the first day of the specific month, i.e. if we are talking about October, display 1.10.2023, and in cell G4 display the last day of the specific month (in the example, it is 31.10.2023)
I found many options on the Internet, but there the dates are in one cell, and in my case, they are in different ones, and I can't do it. I would appreciate any help on how to put the formula together.
Thank you in advance!

A4	B4		D4			G4
2023	10		1.10.2023			31.10..2023

 

[Georgiboy]

How about:

Book1
	A	B	C	D	E	F	G
4	2023	10		01/10/2023			31/10/2023
Sheet1

Cell Formulas
Range	Formula
D4	D4	=DATE(A4,B4,1)
G4	G4	=EOMONTH(D4,0)

 

[K0st4din]

Many, many, many thanks!
Be alive and healthy!

 

[Georgiboy]

You're welcome, thanls for the feedback.