Objective

Create an interactive program that takes in two integers and outputs their sum.

Difficulty

Very easy

Description

In this exercise, you have to create a program that asks the user to input two integers, one-by-one, and then outputs their sum.

The first input prompt of the program should be of the form shown below:

x: <input>

Here, <input> denotes the input of the user.

Similarly, the second input should be of the form:

y: <input>

The output should be:

The sum is: <sum>

where <sum> is the sum of the input integers.

Shown below is an example:

x: 10
y: 20
The sum is: 30
View Solution

New file

Inside the directory you created for this course on Python, create a new folder called Exercise-1-Addition-Calculator and put the .py solution files for this exercise within it.

Solution

As instructed in the question, first we need to ask the user to input a value for x and then a value for y, with the prompts 'x: ' and 'y: ', respectively.

x = input('x: ')
y = input('y: ')
We could use other variable names as well for the input numbers such as a and b, but since the prompt messages specifically use the names 'x' and 'y', it would be straightforward to go with these names for the variables as well.

Next, up we need to convert both x and y to integers using the function int().

x = input('x: ')
y = input('y: ')

# convert x to int
x = int(x)

# convert y to int
y = int(y)

Finally, we just ought to add x and y together and print out the result, as desired in the exercise.

x = input('x: ')
y = input('y: ')

# convert x to int
x = int(x)

# convert y to int
y = int(y)

print('The sum is:', x + y)

Below, we use this program to add two numbers:

x: 50
y: 4
The sum is: 54