View Compilation Error

0_0_25049300_26291.cpp:2:3: error: stray '#' in program
 2.#include<iostream>  
   ^
0_0_25049300_26291.cpp:2:1: error: expected unqualified-id before numeric constant
 2.#include<iostream>  
 ^
0_0_25049300_26291.cpp:4:1: error: expected unqualified-id before numeric constant
 4.using namespace std;  
 ^
0_0_25049300_26291.cpp:5:1: error: expected unqualified-id before numeric constant
 5.LL a[]={0,1,1,1,4,6,19,43,120,307,866,2336,6588,18373,52119,147700,422016,1207477,3471067,9999135,28893560,83665729,242826187,706074369,2056870697,6001555275,17538335077,51323792789,150390053432};  
 ^
0_0_25049300_26291.cpp:6:1: error: expected unqualified-id before numeric constant
 6.int main()  
 ^