Find the odd symbols in each line:

```
Christmax in spring? x
Oh, wait - it's HTsP -
Does this bell a rimg? m
Well, come and sea! a
On Aprils Fools day s
Our encineers present you c
New challenges to ploy o
Hope you'll c0me thlough 0l
_ _
Since you're alreapy here p
You'll find o hidden secr3t o3
Imside the poem where m
The tazk is incomplete z
```

X-MAS{co0l_po3mz}