1. 982 81 625
2. 047 06 913
3. 263 32 394
4. 641 23 210
5. 468 35 310
6. 135 62 689
7. 226 30 125
8. 444 17 588
9. 512 51 843
10 922 78 831

Date: Aug 24, 2015 4:44:32 PM

Generate new ones:
https://www.google.com/accounts/SmsAuthConfig
Only the latest set of backup codes will work.

Keep them someplace accessible, like your wallet.
Each code can be used only once.