View Compilation Error

0_0_30060522_7154.cpp: In function 'int main()':
0_0_30060522_7154.cpp:5:8: error: 'cin' was not declared in this scope
  while(cin >> n)
        ^
0_0_30060522_7154.cpp:6:3: error: 'cout' was not declared in this scope
   cout << (n*n-1)*443664157%998244353) << endl;
   ^