# This program calculates the perimeter and the area of different shapes

print("This program calculates the perimeter and the area of different shapes")

keep_going = ""

while keep_going == "":
    shape = input("Choose a shape from sqaure (s),rectangle (r) or circle (c) ")

    # Check user input

    if shape=="s":
        print("square")
        side = float(input("Enter the length of a side "))
        square_perimeter = side * 4
        square_area = side ** 2
        print(f"The perimeter of a square with a length of {side}={square-perimeter}the area = {square-area}")
    elif shape=="rectangle":
        print("r")
        length = float(input("Enter the length of the rectangle "))
        width = float(input("Enter the width of the recatngle "))
        perimeter = (length + width) * 2
        area = width * length
        print(f"The perimeter of a rectangle is {perimeter} "
               f"the area is {area}")
        print("square")
         
    elif shape == "c":
        print("circle")
        radius = float(input("Enter the radius of the circle "))
        perimeter = (2 * radius) * 3.14
        area = 3.14 * radius**2
        print(f"The perimeter of a circle is {perimeter} "
              f"the area is {area}")

    else:
        print("that is not a valid shape")

    keep_going = input("To enter another shape press enter or any key to exist")



print("The program has ended")