View Compilation Error

0_0_36159969_31032.cpp: In function 'int main()':
0_0_36159969_31032.cpp:46:10: error: 'all' was not declared in this scope
          all ans = aa ^ bb;
          ^
0_0_36159969_31032.cpp:47:16: error: 'ans' was not declared in this scope
         cout <<ans << endl;
                ^