The Census Bureau has collected data about all of its employees. You will be given a data file which contains the GS number ( rating) for each employee, one per input record. A number of 1000 signifies the end of the data file. Valid numbers are from 1 to 18 inclusive. For an invalid number, write out the message " Rating of ______ is invalid". Your output should look like the following :

Number of Employees: ________
Percentage >= GS9: ________
Percentage < GS9: ________
Number of Invalid Ratings: ________

Requirements:
a) Draw a structure chart
b) Write pseudocode using modularization