View Compilation Error

0_0_33906148_6240.cpp: In function 'int main()':
0_0_33906148_6240.cpp:16:5: error: 'cin' was not declared in this scope
     cin>>T; 
     ^
0_0_33906148_6240.cpp:31:9: error: 'cout' was not declared in this scope
         cout<<(f1[1]+f2[1])%mod<<endl;
         ^
0_0_33906148_6240.cpp:31:34: error: 'endl' was not declared in this scope
         cout<<(f1[1]+f2[1])%mod<<endl;
                                  ^