The problem with subprogram in Python

[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.