Here we defined a vector that contains four numbers: 1, 2, 3, and 4.
We've created a vector called salaries that stores the 12 values (salaries) that we specified inside the c() function.
We'd like to analyze salaries by department. Versico has four departments that vary in the number of employees they have. In this case, there are 4, 3, 2, and 3 employees in these four departments. Create a vector named department_employees that contains the numbers of employees in each department, in this precise order.