View Compilation Error

0_0_29358252_22968.cpp: In function 'int main()':
0_0_29358252_22968.cpp:8:15: error: invalid operands of types 'long long int' and 'const char [2]' to binary 'operator<<'
   cout<x*x*x<<" "<<(x+1)*(x+1)*(x+1)<<endl;
               ^