View Compilation Error

0_0_38201305_19625.cpp: In function 'int main()':
0_0_38201305_19625.cpp:28:45: error: invalid operands of types 'const char [6]' and '<unresolved overloaded function type>' to binary 'operator<<'
   cout<<(sg[n]^sg[m]^sg[k])?"Fibo":"Nacci"<<endl;
                                             ^