View Compilation Error

0_0_30527474_9128.cpp:1:1: error: 'include' does not name a type
 include <iostream>  
 ^
0_0_30527474_9128.cpp: In function 'int main()':
0_0_30527474_9128.cpp:71:5: error: 'cin' was not declared in this scope
     cin >> t;  
     ^
0_0_30527474_9128.cpp:75:9: error: 'cout' was not declared in this scope
         cout << "Case #" << (++cc) << ": ";  
         ^
0_0_30527474_9128.cpp:77:30: error: 'endl' was not declared in this scope
             cout << a%mod << endl;  
                              ^
0_0_30527474_9128.cpp:81:30: error: 'endl' was not declared in this scope
             cout << b%mod << endl;  
                              ^
0_0_30527474_9128.cpp:88:24: error: 'endl' was not declared in this scope
         cout << ans << endl;  
                        ^