Problem in MARBLES (mathematics)

[Kapil-Israni-2501896056550976 (Kapil Israni)]

What is wrong with this python code that it is giving wrong answer…

Coding Blocks IDE

[Saurabh-Kumar-1331476656958199 (Saurabh Kumar)]

for division operation use // instead of / … in python 3 both have different meaning.