func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long mod = 1000000007;   long long powermodm(long long x, long long n, long long M) {     long long result = 1;     while (n > 0) {       if (n % 2 == 1) result = (result * x) % M;       x = (x * x) % M;       n = n / 2;     }     return result;   }   long long power(long long _a, long long _b) {     long long _r = 1;     while (_b) {       if (_b % 2 == 1) _r = (_r * _a);       _b /= 2;       _a = (_a * _a);     }     return _r;   }   long long gcd(long long a, long long b) {     if (a == 0) return b;     return gcd(b % a, a);   }   long long lcm(long long a, long long b) {     return (max(a, b) / gcd(a, b)) * min(a, b);   }   long long modInverse(long long x) { return powermodm(x, mod - 2, mod); }   long long fact[100005];   long long ncrmodm(long long n, long long r, long long m) {     return (fact[n] * (modInverse(fact[n - r]) * modInverse(fact[r])) % m) % m;   }   void init_fact() {     fact[0] = 0;     for (long long i = 1; i < 100001; i++) fact[i] = fact[i - 1] * i;   }   void write(long long a[], long long n) {     for (long long i = 0; i < n; i++) cout << a[i] <<    ;     cout << endl;   }   void show(vector<long long> v) {     for (long long i = 0; i < v.size(); i++) cout << v[i] <<    ;     cout << endl;   }   vector<vector<long long> > vec;   vector<long long> visited;   void dfs(int x, int p = -1) {     visited[x] = 1;     for (int i = 0; i < vec[x].size(); i++) {       if (p == vec[x][i]) continue;       if (!visited[vec[x][i]]) {         visited[vec[x][i]] = 1;         dfs(vec[x][i], x);       }     }   }   bool prime[100000];   void seive() {     int n = 100000;     memset(prime, true, sizeof(prime));     for (int p = 2; p * p <= n; p++) {       if (prime[p] == true) {         for (int i = p * p; i <= n; i += p) prime[i] = false;       }     }   }   void solve() {     long long n, k;     cin >> n >> k;     long long a[n];     long long ma = -INT_MAX, mi = INT_MAX;     for (long long i = 0; i < n; i++) {       cin >> a[i];       ma = max(ma, a[i]);       mi = min(mi, a[i]);     }     if (k % 2) {       for (long long i = 0; i < n; i++) {         cout << ma - a[i] <<    ;       }       cout << endl;     } else {       for (long long i = 0; i < n; i++) {         cout << -mi + a[i] <<    ;       }       cout << endl;     }   }   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int t = 1;     cin >> t;     while (t--) {       solve();     }     return 0;   }   