func_code_string: #include <bits/stdc++.h>   using namespace std;   const double eps = 1e-9;   const int INF = 1000000007;   const int MOD = 1000000007;   const int MAXN = 100055;   int dx[] = {2, 1, -1, -2, -1, 1, 2, 1, -1};   int dy[] = {0, 2, 2, 0, -2, -2, 0, 2, 2};   int main() {     long long n;     while (cin >> n) {       n++;       if (n == 1) {         cout <<  0 0  << endl;         continue;       }       long long L = (n - 1 + 2) / 3;       L = sqrt(L + 0.5);       while (3 * L * (L + 1) + 1 < n) ++L;       n -= 3 * L * (L - 1) + 1;       int side = (n - 1) / L;       n -= L * side;       long long ansx = dx[side] * L + dx[side + 2] * n;       long long ansy = dy[side] * L + dy[side + 2] * n;       cout << ansx <<     << ansy << endl;     }     return 0;   }   