# This program calculates the perimeter and area of different shapes

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

keep_going = ""
while keep_going == "":

    shape = input("Choose a shape from square press (s), rectangle (r), circle (c), or parallelogram (p) ")
    
    if shape == "s" or shape == "S":
        print("square")
        side = float(input("Enter the length of a side "))
        square_area = side **2
        square_perimeter = side * 4
        print(f"The perimeter of a square with a length of {side} is {square_perimeter} "
              f"the area is {square_area}")

    elif shape == "r" or shape == "R":
        print("rectangle")
        length = float(input("Enter the length of the long side "))
        width = float(input("Enter the length of the short side "))
        rectangle_area = length * width
        rectangle_perimeter = (length + width) * 2
        print(f"The perimeter of a rectangle with a length of {length} and width of {width} is {rectangle_perimeter} "
              f"the area is {rectangle_area}")

    elif shape == "c" or shape == "C":
        print("circle")
        radius = float(input("Enter the radius "))
        circle_area = 3.14 * radius **2
        circle_perimeter = 2 * 3.14 * radius
        print(f"The perimeter of a circle with a radius of {radius} is {circle_perimeter} "
              f"the area is {circle_area}")

    elif shape == "p" or shape == "P":
        print("parallelogram")
        base_length = float(input("Enter the base length "))
        height = float(input("Enter the height "))
        parallelogram_area = base_length * height
        parallelogram_perimeter = (base_length + height) * 2
        print(f"The perimeter of a parallelogram with a base of {base_length} and a height of {height} is {parallelogram_perimeter} "
              f"the area is {parallelogram_area}")

    else:
        print("This shape is not recognised or is invalid.")

    keep_going = input("if you want you want to choose another shape click enter if you dont type 'no' ")
        

print("The program has ended")