print("Welcome to the paint program")
while True:
    
    

    
        height = float(input("Please enter the height of the room in metres. \n\
"))
        
    
        if height < 2:
            print("Minimum height of 2 metres")
            continue
        elif height > 6:
            print("Maximun height of 6 metres")
            continue
    
    
  
        lengthlist = list(map(float, input("Please enter the length of each wall sepirated by a space. Put spaces inbetween all numbers (Min. 2):  \n\
").split()))
        print(len(lengthlist))
        if len(lengthlist) < 3:
            print("Please enter four numbers")
            continue
        else:
            len1 = lengthlist[0] * height
            len2 = lengthlist[1] * height
            len3 = lengthlist[2] * height
            len4 = lengthlist[3] * height
            area = len1 + len2 + len3 + len4
            print("The total area is", area,"metres.")
            
            
            
            paintchoice = input('Please type which service do you want? \n\
Economy Quaility - £0.45 per square metre \n\
Standard quality - £1.00 per square metre \n\
Luxury quality - £1.75 per square metre \n\
')
            
            undercoat = input('Do you want an undercoat paint for an additional £0.50/square metre? Y/N')
            
            if paintchoice.startswith('e'):
                price = area * 0.45
            elif paintchoice.startswith('s'):
                price = area * 1
            elif paintchoice.startswith('l'):
                price = area * 1.75
            if undercoat.startswith('y'):
                newPrice = price + area * 0.5
            elif undercoat.startswith('n'):
                newPrice = price
                print(price)
                

        

            
                
                print("The sub price is £",round(newPrice,2),". With VAT the final price will be:")
                vat = newPrice * 0.20
                if undercoat.startswith('y'):
                        print("£","%.2f" % round(vat,2),"to paint", area,"square metres with undercoat.")
                elif undercoat.startswith('n'):
                        print("%.2f" % round(vat,2),"to paint", area,"square metres without undercoat.")
            
                
                

                
                    
#res = input('Restart the program? Y/N').lower()
#                if res.startswith('y'):
#                    continue
#                elif res.startswith('n'):
#                   break
#                else:
#                    break