Minimum Sum of Four Digit Number After Splitting Digits
To solve this problem, you can follow the steps below:
 Convert the number into a string and sort it in nondecreasing order.
 Create two numbers from the sorted digits by appending digits alternatively to each number. Since the digits are sorted, this ensures that both numbers are the smallest possible.
 Convert the two created strings back to integers and return their sum.
Python solution:


This solution works by minimizing the values of the two numbers created from the digits of the given number. By sorting the digits and distributing them evenly between the two numbers, we ensure that both numbers are as small as possible, thus minimizing their sum.