#include <bits/stdc++.h>
using namespace std;
using namespace chrono;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif

int main()
{
    int64_t t;
    cin >> t;

    int64_t inf = (1LL << 60);

    for (int64_t _ = 0; _ < t; _++)
    {
        int64_t x, a;
        cin >> x >> a;

        vector dp(a + 1, inf);

        dp[a] = 0;

        for (int64_t i = a; 0 <= i; i--)
        {
            for (int64_t j = 1; j <= min<int64_t>(i, 320); j++)
            {
                dp[i - j] = min(dp[i - j], dp[i] + j * j + x);
            }
        }

        cout << dp[0] << endl;
    }

    return 0;
}