which method is best?

Question

which 'str+int' printing method is best?
print ("sum is: "+str(10))
print ("sum is:",10)
print ("sum is: {0}".format (10))

Answer 1

I think it's the second one because it's the shortest. Doesn't really matter that much.

Answer 2

All the methods show same thing so it's your choice.
If I would write this, then i will use first option as my habit to write this, it seems easy, and here 10 is converted to string and then displayed.