View Compilation Error

0_0_37120418_25469.cpp: In function 'int get_num(int)':
0_0_37120418_25469.cpp:18:38: error: 'F' cannot be used as a function
     int num = pow_mod(2,n,2008) - F(1);//计算2^n - F(1)
                                      ^
0_0_37120418_25469.cpp: In function 'int main()':
0_0_37120418_25469.cpp:35:34: error: 'shu' was not declared in this scope
         if(n <= 2) printf("%d\n",shu[n]);
                                  ^