What i have: 

```
1. 25686-47362-04822-08149-48999-28161-15124-63556

2. 25686-47362-04822-08149-48999-28161-15124-6355654534

3. 54354325686-47362-04822-08149-48999-28161-15124-63556

4. 25686-47362-04822-08149-48999-28161-15124-6355654534fds

5. fdsfds54354325686-47362-04822-08149-48999-28161-15124-63556

6. 25686-47362-04822-08149-48999-28161-15124-63556-63556

```

What i expect to get

```
1. 25686-47362-04822-08149-48999-28161-15124-63556

```

I tried something nearest `([0-9]{5,5}){8}`

I trying to avoid 2,3,4,5,6.