NUMFACT: NZEC error python

general
,
1

first sub case got an ac for subsequent ones shows this error

my code : http://ideone.com/fork/3Qtz0M

2

anyone???

3

plz tell me

4

Read the Codechef FAQ for what could possibly have caused NZEC error.

5

read a lot about that but no help to me

6

anyone???