View Compilation Error

0_0_33253739_18835.cpp: In function 'int main()':
0_0_33253739_18835.cpp:7:5: error: expected ';' before 'long'
     long long i,m,k,sum=1;
     ^
0_0_33253739_18835.cpp:8:9: error: 'i' was not declared in this scope
     for(i=1; i<=n; i++)
         ^
0_0_33253739_18835.cpp:10:9: error: 'sum' was not declared in this scope
         sum=(sum%2009)*(i%2009);
         ^
0_0_33253739_18835.cpp:12:21: error: 'sum' was not declared in this scope
     printf("%lld\n",sum);
                     ^