I would like to add a column "Region" where the first two digits of a zip-code can be attributed to a region:

* Zip\_code: 11 = Region:A
* Zip\_code: 22 = Region:B
* Zip\_code: 44 = Region:C

Main table

```
Zip_code      product_id
110034        55454
114242        45445
113564        46454
223434        53533
224535        56455
223435        63535
444345        62435
443535        24353

```

Output Table

```
Zip_code      product_id   Region
110034        55454        A
114242        45445        A 
113564        46454        A
223434        53533        B
224535        56455        B
223435        63535        B
444345        62435        C
443535        24353        C

```