View Compilation Error

0_0_29279665_30784.cpp: In function 'int main()':
0_0_29279665_30784.cpp:35:40: error: 'ans' was not declared in this scope
          printf("Case %d: %lld\n",Case,ans-anss/2);
                                        ^
0_0_29279665_30784.cpp:35:44: error: 'anss' was not declared in this scope
          printf("Case %d: %lld\n",Case,ans-anss/2);
                                            ^