PYTHON PROGRAM • BASICS & INPUT/OUTPUT

Add Two User Inputs in Python

Learn add two user inputs in python with a short, executable Python example.

Beginnerinput()int()Addition

PROBLEM UNDERSTANDING

Input and expected output

Sample input
10
15
Sample output
25

COMPLETE PYTHON PROGRAM

Complete Python implementation

python-sum-user-input.py
Open in compiler
a = int(input())
b = int(input())
print(a + b)

GUIDED CODE TOUR • NOT LIVE EXECUTION

Study the program line by line

Use the real compiler button above to run and debug with different inputs.

CURRENT STEP

Select Start to walk through the important lines.

SELECTED LINE

No line selected

EXPECTED OUTPUT FOR THE SAMPLE

25
0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

  1. Read the sample input and convert it into the values required for add two user inputs.
  2. Apply input() and int() to compute the required result.
  3. Display the result for add two user inputs and compare it with the documented sample output.

This example of add two user inputs computes the result directly from the prepared sample data. It demonstrates input(), int(), and Addition and prints a deterministic result that can be checked against the sample output.

EFFICIENCY

Time and space complexity

Time complexity

O(1)

Auxiliary space

O(1)

DEBUGGING CHECKLIST

Common mistakes

Check this

For add two user inputs, keep the data shape and value types consistent with input().

Check this

Apply input() in the same order shown by the algorithm; changing the order can change the result.

Check this

Enter values in the documented order and convert text input to the required numeric type.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.