#Write a program that reads 7 real numbers. Each number indicates the 
#Fahrenheit temperature for one day. The program finds and prints the average 
#Celsius temperature for these 7 days. Use the following formula to convert 
#Fahrenheit to Celsius: Celsius = (5/9)*(Fahrenheit-32) 
#YOU MUST USE LOOP FOR
sum=0
for i in range(7): 
	#i=0,1,2,3,4,5,6 - exactly 7 times that we need to execute the loop 
	#or you can use range(1,8): 1, 2, 3, 4, 5, 6, 7 - 
	#again exatly 7 times to execute the loop   
	F=float(input("enter Fahrenheit temperature "))
	C=(5/9)*(F-32)
	sum=sum+C
print("average Celsius", sum/7)