Using Flowgorithm, design the following program:
// This program accepts a user's monthly pay
// and rent, utilities, and grocery bills
// and displays the amount available for discretionary spending
// (which might be negative)
// Modify the program to output the pay and the total bills
// as well as the remaining discretionary amount

start
input pay
input rent
input utilities
input groceries
discretionary = pay - rent - utilities - groceries
output discretionary