Query for an testcase related doubt

#1

Actually my all testcases passed a successfully for big gcd question except one it gives a run time error .I didn’t understand why it’s going on?All cases are passed but it gives run time error.Is it possible

#2

@kaushikghosh199832
check for in case if input n, m are 0 and 5 the output should be 5.

#3

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