Getting wrong ans on submitting?

#1

I am getting correct o/p on sample tc but wrong ans on submitting . Why ??

#2

@namandubey20 share your code using ide.codingblocks.com please

#3
#4

@namandubey20 you have to print spaces as well after printing commas. And you have to take the value of m before n and not the otherwise, make correction in line number 5.
Hope this helps.