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IntuitionApproachComplexity
Time complexity:

Space complexity:
Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```java []
class Solution {
    public int minimumSum(int num) {
        
        int[] digits = new int[4];
        int i = 0;

        while(num > 0) {
            digits[i++] = num % 10;
            num /= 10;
        }

        Arrays.sort(digits);

        return digits[0] * 10 + digits[2] + digits[1] * 10 + digits[3];
    
    }
}
```
['Java']