String compression

#1

My first 3 test cases are running good but the 4th one isnt showing the right output can you please correct my code sir.

https://ide.codingblocks.com/s/634565 here is my code please check it and help me

#2

if you have only one character then your code not giving correct output
for input
a
Correct Output
a1
Your Output
a

#3

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