View Compilation Error

0_0_21359576_12254.cpp: In function 'int main()':
0_0_21359576_12254.cpp:27:64: error: invalid operands of types 'LL {aka long long int}' and '<unresolved overloaded function type>' to binary 'operator<<'
         if(n%2==0) cout<<(q_pow(q_pow(2,n)-1,m-1)*2/3+mod%mod<<endl;
                                                                ^
0_0_21359576_12254.cpp:27:68: error: expected ')' before ';' token
         if(n%2==0) cout<<(q_pow(q_pow(2,n)-1,m-1)*2/3+mod%mod<<endl;
                                                                    ^