View Compilation Error

0_0_23616681_10372.cpp: In function 'int main()':
0_0_23616681_10372.cpp:5:12: error: 'cin' was not declared in this scope
      while(cin >> n) {
            ^
0_0_23616681_10372.cpp:7:10: error: 'cout' was not declared in this scope
          cout << "I bet on Oregon Maple~" << endl;
          ^
0_0_23616681_10372.cpp:7:46: error: 'endl' was not declared in this scope
          cout << "I bet on Oregon Maple~" << endl;
                                              ^