Each sequence of 4 numbers equals a letter
fill in the gaps.

3332 3573 3332 9999 9999 6529 3332 9999
1012 9211 7521 6529 9999 1129 3123 3332
3573 3418 9211 1129 6775 7645 9999 3332
3573 3332 9999 3123 7528 9999 3332 8725
9211 7645 6775

A c-- t--- f-g--- b--- -s -o-
- --- -u- - l--n



Note: these numbers are not related to each other.