Product of maximum in first array and minimum in second

[Thethispointer]

So I am practicing the following

Given two arrays of size N1 and N2 respectively, the task is to calculate the product of max element of first array and min element of second array.

https://practice.geeksforgeeks.org/probl...n-second/0

I was writing this program and got hung up on an error...

Traceback (most recent call last):
File "C:\Users\groundZero Admin\Documents\Python\arrayPracetice1.py", line 22, in <module>
y = A[i]
IndexError: list index out of range

#Given two arrays of size N1 and N2 respectively, the task is to 
#calculate the product of max element of first array and min
#element of second array.
#
#

A = [1, 50, 2, 7, 3, 8]
B = [1, 50, 2, 7, 3, 8, 75, 77, 0]

listALength = len(A)
listBLength = len(B)

#These print functions were used to test the len function on arrays during
#this study session. They're now commented out to make them inactive.
#print(listALength)
#print(listBLength)

#Take the length of the array - 1 to increment the list via a loop

x = A[0]
for i in A:
    y = A[i]
    if y > x:
        x = y

print(x)

Please help me! Thank you!