All right. Thank you for your information.
Best regards

Hi, yes it is exactly as you said. The building with number 60 has two flats (nr 1 & 2) on the front and two flats (nr 60a & 60b) on the back.
Regards

Hi
It is a big divided house.
Looking from:
...the front there are (flat nr 1 & flat nr 2)
...the back there are (60a & 60b)

Hi
It’s a semidetached house. Looking form the right side number 2 is first.

Looking form the right side number 6 is first.

Correction:
Looking form the right side number 2 is first.

Hi
It’s a semidetached house. Looking form the right side number 2 is first.