View Compilation Error

0_0_25616065_28289.cpp: In function 'int main()':
0_0_25616065_28289.cpp:12:19: error: expected primary-expression before 'long'
             cout<<long long(n/3*n/3*n/3)<<endl;
                   ^
0_0_25616065_28289.cpp:14:19: error: expected primary-expression before 'long'
             cout<<long long(n/2*n/4*n/4)<<endl;
                   ^