"A Fibonacci sequence is composed of elements created by adding the two previous elements. Using a

for loop or a while loop, create a program that will find the find the first 20 elements of the sequence

starting with two numbers input by the user. The average value of the ratio of consecutive elements

in the sequence must also be calculated."

This is my wonderful attempt...

f1= input('f1:')

f2= input('f2:')

help for

Any help much appreciated.