For WA12 try this:
9126492316491641269352615215701236589213658621356281376589216562319562396592381659862195621281E-190
100
#

Output must be:
0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009126

Let me add some tests too:

1+
1

-10.0-
1

My prog passed all tests from topics below but failed these. Output obviously must be "Not a floating point number"