#Structured programming Worksheet 2 Qu 4 written without subroutines
#program to find the maximums of sets of three numbers
#until the user enters three zeroes
#It then calculates and outputs the average of the maximums
total = 0
n=0
print (
        """
program finds the maximums of sets of three numbers.\n
Enter three zeroes when all numbers entered.\n
Proram then calculates and outputs the average of the maximums
    """
    )
print("Please enter first number ")
num1 = int(input())
print("Please enter second number ")
num2 = int(input())
print("Please enter third number ")
num3 = int(input())
while num1!=0 and num2!=0 and num3!=0:
    max = num1
    if num2>max:
        max = num2
    if num3>max:
        max = num3
    #endif
    print ("Max of the three numbers is is ",max)
    total = total + max
    n=n+1
    print("Please enter first number ")
    num1 = int(input())
    print("Please enter second number ")
    num2 = int(input())
    print("Please enter third number ")
    num3 = int(input())
#endwhile
average = total/n
print("Average of maximums is ",average)