NUMFACT: NZEC error python

general
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1

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

my code : Online Compiler and IDE >> C/C++, Java, PHP, Python, Perl and 70+ other compilers and interpreters - Ideone.com

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???