Find the Error. Consider the following code, which runs correctly at times but gives error at other times. Find the error and its reason.

Lst1 = [23, 34, 12, 77, 34, 26, 28, 93, 48, 69, 73, 23, 19, 88]
Lst2 = []
print("List1 originally is: ", Lst1) 
ch = int(input("Enter 1/2/3 and \
predict which operation was performed?")) 
if ch == 1:
   Lst1.append(100)
   Lst2.append(100)
elif ch == 2:
   print(Lst1.index(100)) 
   print(Lst2.index(100)) 
elif ch == 3:
   print(Lst1.pop())
   print(Lst2.pop())

Suggest the correction for the error(s) in previous question's code.

Find the error. Consider the following code and predict the error(s):

(y for y in range(100) if y % 2 == 0 and if y % 5 == 0)

Find the error in the following list comprehension :

["good" if i < 3: else: "better" for i in range(6)]