View Compilation Error

0_0_33413705_13661.cpp:13:2: error: expected unqualified-id before numeric constant
  2091
  ^
0_0_33413705_13661.cpp: In function 'int main()':
0_0_33413705_13661.cpp:16:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_33413705_13661.cpp:4:5: note: 'int main()' previously defined here
 int main(){ 
     ^
0_0_33413705_13661.cpp:43:10: error: expected '}' at end of input
  return 0;
          ^