func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     long long x, n;     cin >> x >> n;     int pp = n % 4;     long long z;     if (pp == 0)       z = 0;     else if (pp == 1)       z = -n;     else if (pp == 2)       z = 1;     else       z = n + 1;     long long dre = x % 2 == 0 ? 1 : -1;     x += dre * z;     cout << x << endl;   }   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     cin.tie(NULL);     long long t = 1;     cin >> t;     while (t--) {       solve();     }     return 0;   }   