View Compilation Error

0_0_38980998_14557.cpp: In function 'int main()':
0_0_38980998_14557.cpp:8:22: error: 'a' was not declared in this scope
    8 |                 cin>>a>>b;
      |                      ^
0_0_38980998_14557.cpp:8:25: error: 'b' was not declared in this scope
    8 |                 cin>>a>>b;
      |                         ^