View Compilation Error

0_0_21399005_19596.cpp: In function 'int main()':
0_0_21399005_19596.cpp:33:13: error: 'A' was not declared in this scope
         x = A, y = B, z = C;
             ^
0_0_21399005_19596.cpp:33:20: error: 'B' was not declared in this scope
         x = A, y = B, z = C;
                    ^
0_0_21399005_19596.cpp:33:27: error: 'C' was not declared in this scope
         x = A, y = B, z = C;
                           ^