Run id: 154396

Main.cc: In function 'int main()':
Main.cc:5:10: error: declaration does not declare anything [-fpermissive]
     for (int; i ;+=3) {
          ^
Main.cc:5:15: error: 'i' was not declared in this scope
     for (int; i ;+=3) {
               ^
Main.cc:5:18: error: expected primary-expression before '+=' token
     for (int; i ;+=3) {
                  ^
Main.cc:7:14: error: 'i' was not declared in this scope
         cin>>i;
              ^