I have two tables with multiple rows:

```
Table A
(TYPE - Num)
LA - 1
LA - 2
LA - 3
LA - 4
LA - 5
MB - 1
MB - 2
.
.
.

```

```
Table B
(TYPE - Num - NumLine)
LA - 1 - 1
LA - 1 - 2
LA - 1 - 3
LA - 1 - 4
LA - 2 - 1
LA - 2 - 2
LA - 2 - 3
LA - 2 - 4
LA - 3 - 1
LA - 3 - 2
LA - 4 - 1
LA - 5 - 1
MB - 1 - 1
MB - 1 - 2
MB - 1 - 3
MB - 2 - 1
.
.
.

```

And I want the NUM to start from a specific number for LA and a different number for MB:
Example: I want LA to start from 12 and MB to start from 20, and I want this change to apply to both tables, on the corresponding row.

```
Table A
(TYPE - Num)
LA - 12
LA - 13
LA - 14
LA - 15
LA - 16
MB - 20
MB - 21
.
.
.

```

```
Table B
(TYPE - Num - NumLine)
LA - 12 - 1
LA - 12 - 2
LA - 12 - 3
LA - 12 - 4
LA - 13 - 1
LA - 13 - 2
LA - 13 - 3
LA - 13 - 4
LA - 14 - 1
LA - 14 - 2
LA - 15 - 1
LA - 16 - 1
MB - 20 - 1
MB - 20 - 2
MB - 20 - 3
MB - 21 - 1
.
.
.

```

How can I do this? I want to apply this for a lot of rows.