Chewbacca and Number

#1

I want to what question want to say
suppose number is 9587
Then afer inverting it result should be 0412
Am I right or wrong ??

#2

@ashwani225
hello Ashwani,
for 9587 answer should be 9412 and not 0412 because 0412 has leading zeros.

#3

if 0 comes in mid then it will be valid or not

#4

. … … it is valid .