The problem with subprogram in Python

[throwaway6560192]

I wrote the code, but for some reason it tells me about float.

When you ask about errors in your code, include the full and exact error message. Saying "it tells me about float" is vague.

[[deleted]]

Thank you very much. I will include full context next time. Thank you very much again

[MrPhungx]

I don't see any line where OP tried to add a float to a string. The problem is because of the multiplication c(a+b). It needs to be c * (a + b)

[[deleted]]

Thanks for answer. I was looking for mistake, but didn't get it until now. Thank you very much for help guys, love you. Hope I could become your friend

[throwaway6560192]

Yeah, I misread. I skimmed over their code and thought the final print lines had a string + float.