# Exercise: Foreach

Test your understanding of the foreach statement with this exercise.

To complete the exercises in this lesson, we require a review of the arrays and lists we learned earlier in this course. This knowledge will equip us with the tools to effectively solve the following exercises: calculating squares of numbers in a list and summing even numbers in an array, reinforcing our understanding of the `foreach`

loops through practical application.

## Exercise 1: Square numbers with the `foreach`

loop

### Problem statement

Write a `foreach`

loop that outputs the squares of the numbers from a list of integers.

For this exercise, we are primarily focusing on the following:

**The**`foreach`

**loop:**To iterate over integers in a collection**Collection handling:**Managing arrays or lists in C#**Arithmetic operations:**Calculating the square of numbers**Control structures:**Employing loops for task repetition

### Sample input

Input is a collection of integers, for example, `[1,3,5]`

.

### Expected output

For `[1,3,5]`

, the expected output is `[1,9,25]`

. Similarly, if the input is `[4,89,54,98,29]`

, the output would be `[16,7921,2916,9604,841]`

.

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