Python Program to Add Two Numbers

easyInput and operatorsPython

The first program every Python course teaches after Hello World. It shows the three things almost every program does: read input, work on it, and print a result.

The question

Write a program that reads two integers (one per line) and prints their sum.

The code

program.py

a = int(input())
b = int(input())
print("Sum =", a + b)

Try it Yourself »

Input

73
8

Output

Sum = 81

How it works

1input() always returns text, so int(input()) converts what the user types into a whole number.
2The two numbers are stored in a and b.
3a + b adds them. print() with a comma puts a space between "Sum =" and the answer.

Common mistakes

Forgetting int(): "12" + "30" joins the text and prints 1230 instead of 42.
Using float() when the question asks for integers — the answer then prints as 42.0.

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