class Solution {
public:
    vector<long long> maximumEvenSplit(long long finalSum) {
        if (finalSum % 2) return {};
        if (finalSum == 4) return {4};
        long long s = 2;
        long long sum = 0;
        vector<long long> ret;
        while (true) {
            ret.push_back(s);
            sum += s;
            s += 2;
            if (sum == finalSum) break;
            if ((finalSum - sum) / 2 <= s) {
                ret.push_back(finalSum - sum);
                break;
            }
        }
        return ret;
    }
};