View Compilation Error

0_0_33868563_28368.cpp:1:1: error: 'include' does not name a type
 include <iostream>
 ^
0_0_33868563_28368.cpp: In function 'int main()':
0_0_33868563_28368.cpp:85:11: error: 'cin' was not declared in this scope
     while(cin>>N>>M){
           ^