PROGRAMMING:Time conversion
This problem requires writing a program to output the time value of a given time after 'n' seconds in the format of 'HH: mm: Ss' (when the time exceeds 23:59:59, it starts from 0).
###Input format:
Input the start time in the format of 'HH: mm: Ss' in the first line, and the number of whole seconds' n' ($$< $$60) in the second line.
###Output format:
Output the result time in the format of 'HH: mm: Ss' in one line.
###Input example:
```in
11:59:40
thirty
```
###Output example:
```out
12:00:10
```
answer：If there is no answer, please comment
###Input format:
Input the start time in the format of 'HH: mm: Ss' in the first line, and the number of whole seconds' n' ($$< $$60) in the second line.
###Output format:
Output the result time in the format of 'HH: mm: Ss' in one line.
###Input example:
```in
11:59:40
thirty
```
###Output example:
```out
12:00:10
```
answer：If there is no answer, please comment