View Compilation Error

0_0_36401109_26979.cpp: In function 'int main()':
0_0_36401109_26979.cpp:26:20: error: 'read' was not declared in this scope
     int T;T = read();
                    ^
0_0_36401109_26979.cpp:82:23: error: 'Print' was not declared in this scope
         Print(ans,'\n');
                       ^
0_0_36401109_26979.cpp:84:11: error: 'Write' was not declared in this scope
     Write();
           ^