View Compilation Error

0_0_26756894_31109.cpp: In function 'int main()':
0_0_26756894_31109.cpp:81:43: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
             printf("%lld\n", Ans.a[0][0]<<endl);
                                           ^