Solution using C++
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution {\npublic:\n    int minimumSum(int num) {\n        vector<int> ans(4, 0);\n        for (int i = 0; i < 4; i++)\n        {\n            ans[i] = num % 10;\n            num /= 10;\n        }\n        ranges::sort(ans);\n        return (ans[0] * 10 + ans[2]) + (ans[1] * 10 + ans[3]);\n    }\n};\n```
['C++']