```cobol
============================
=== Common Lisp 160 bytes ==
============================

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(format t"S~a~a by the ~a,~%The shells s~3:*~Aare ~a, I'm sure.~%So if s~3:*~A~a on the ~a,~%Then I'm sure s~3:*~a~*~a shells.""he sells ""seashells""seashore")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Using the template:
S12 by the 3,
The shells s1are 2, I'm sure.
So if s12 on the 3,
Then I'm sure s13.
Where 1 is "he sells ", 2 is "seashells", and 3 is "seashore"
```
https://ideone.com/n7zVUm