View Compilation Error

0_0_27465017_14267.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_27465017_14267.cpp: In function 'int main()':
0_0_27465017_14267.cpp:5:27: error: 'scanf' was not declared in this scope
 while(scanf("%d%d", &i, &j) == 2)
                           ^
0_0_27465017_14267.cpp:6:21: error: 'printf' was not declared in this scope
 printf("%d\n", i + j);
                     ^