• 22

## Learning Opportunities

This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.

## Goal

Info/Rules
The 24 puzzle is an arithmetical puzzle in which the objective is to find a way to manipulate four integers so that the end result is 24. For example, for the numbers 4, 7, 8, 8, a possible solution is (7-8/8)*4 = 24 - Wikipedia

You are given 4 integers, each ranging from 0-13. Determine whether it is possible to achieve the number 24 using only parenthesis, addition, subtraction, multiplication, and division while including every single given integer in your calculations.

https://en.wikipedia.org/wiki/24_(puzzle)

Examples
You can make 24 from 6, 6, 6, and 6
With 6+6+6+6

You can make 24 from 1, 2, 3, and 4
With 1*2*3*4

You can make 24 from 3, 3, 8, and 8
With 8/(3-(8/3))

You can make 24 from 5, 5, 5, and 5
With (5*5)-(5/5)

You can't make 24 from 1, 1, 1, and 1

You can't make 24 from 0, 1, 4, and 9
Input
Lines 1-4: An integer N
Output
Line 1: Whether or not it is possible to achieve 24 as a result of the 4 integers using the rules above, "true" if possible and "false" if not.
Constraints
The 4 integers N are between 0 and 13.
Example
Input
```6
6
6
6```
Output
`true`

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