I tried to run the code with CodeRunner and this is the result
I also can see that there are some non printable characters which are illegal to python syntax. I am trying to reformat the code.
In the last else part, you tried to use
+ between string and int. You should use parentheses to fix it. For example
print(str(num1 + num2)+":00")
depending on your question. If EOF error happens, try to reformat. And with online compilers, always add a empty new line at the end of your file which will help you fix this issue.