Given an array arr[], the task is to combine all the elements in the array sequentially and sort the digits of this number in ascending order.

**Note: **Ignore leading zeros.

**Examples:**

Input:arr =[7, 845, 69, 60]

Output:4566789

Explanation:The number formed by combining all the elements is “78456960” after sorting the digits we get 4566789

Input:arr =[8, 5603, 109, 53209]

Output:1233556899

Explanation:The number formed by combining all the elements is “8560310953209” after sorting the digits we get “1233556899”

**Approach:**

- Convert each element of the list to a string using map() function.
- Join the list using join() function.
- Sort the string using join() and sorted()
- Convert string to an integer using type casting
- Return the result

**Below is the implementation of the above approach:**

## Python3

`# python program to print sorted number by merging` `# all the elements in array function to print` `# sorted number` ` ` `def` `getSortedNumber(number):` ` ` ` ` `# sorting the string` ` ` `number ` `=` `''.join(` `sorted` `(number))` ` ` ` ` `# converting string to integer` ` ` `number ` `=` `int` `(number)` ` ` ` ` `# returning the result` ` ` `print` `(number)` ` ` `# function to merge elements in array` `def` `mergeArray(lis):` ` ` ` ` `# convert the elements of list to string` ` ` `lis ` `=` `list` `(` `map` `(` `str` `, lis))` ` ` ` ` `# converting list to string` ` ` `string ` `=` `''.join(lis)` ` ` ` ` `# passing this string to sortednumber function` ` ` `getSortedNumber(string)` ` ` `# Driver code` `lis ` `=` `[` `7` `, ` `845` `, ` `69` `, ` `60` `]` ` ` `# passing list to merge array function to merge` `# the elements` `mergeArray(lis)` |

**Output:**

4566789

Attention geek! Strengthen your foundations with the **Python Programming Foundation** Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the **Python DS** Course. And to begin with your Machine Learning Journey, join the **Machine Learning – Basic Level Course**