I need help on making this code run, what am I missing?

Greeting.java ElevatorSimulat Grade.java radeTest.java Employee.java EmployeeTester square.java include #include int mainQ int first, second; printf("Enter the first number ); scanf("%d" ,&first); printf("Enter the second number ); scanf("%d", & second); printf("Sum: %15d " , first-second); printf("Difference: %7d ", first-second); printf(" Product :%11d " , first*second); printf("Average:%10d ", (first+second)/2); printf(" Distance : %9d " , abs(first-second)) ; printf("Max : %15d ", first > second?first: second); printf("Min:%14d ",first