Formating INT value to custom HH:MM:SS using expression for data labels

Hi,I have INT value like 103743 or 33059, which going to aggregate in my chart for/by different dates.I want to use expression for show data labels, and want to show like HH:MM:SS instead of 103743 or 33059103743 i.e. 10 Hou, 37 Min and 43 Sec 33059 i.e. 3 Hou, 30 Min and 59 SecIf you look carefully the length of INT value can we 5 or 6 digit, so if 6 digit then first 2 digit HH, next 2 digit MM and last 2 digit SS. But if length of digit is 5 then first digit HH, next 2 digit MM and last 2 digit SS.Thanks.