View Compilation Error

0_0_39890258_22045.cpp: In function 'int main()':
0_0_39890258_22045.cpp:4:11: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |     while(cin >> a >> b){
      |           ^~~
      |           std::cin
In file included from .\stdc++.h:146:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~