If you try to add an integer to a textual value, python will complain telling TypeError: can only concatenate str (not "int") to str.
It’s only possible to add two strings to each other. So the way to add an integer to a string is to make it into a text first:
a = 'some random string'
b = 10
c = a + str(b)
print(c) # some random string10
When writing int(input()) we actually read a text and then convert it into an integer. It’s also possible to do the opposite by converting an integer into a string with str().
Challenge
Given a string and a number, your task is to print that string followed by a : and the 20 times multiple of the number.
Note: Don’t use print directly. Store the result in a res variable and print res in the end.