import string
import random

def Get_number():
    x = int(input("Enter a number:\n"))
    return x

def Usr_msg(x, y):
    """Print a message telling the user whether there were any
        duplicates, and if so how many"""
    if len(x) == len(y):
        print("The list had no duplicates")
    elif len(x) - len(y) == 1:
        print("The list had one duplicate")
    else:
        u = len(x) - len(y)
        print("The list had " + str(u) + " duplicates\n")

def a_no_dup_set(a):
    """Generate list of elements in a without duplicates using sets"""
    b = list(set(a))
    return b

def a_no_dup_loop(a):
    """Generate list of elements in a without duplicates using a loop"""
    b = []
    for i in a:
        if not i in b:
            b.append(i)
    return b

x = Get_number()
#Generate random list of letters
a = random.choices(string.ascii_lowercase, k = x)

a_no_dup = a_no_dup_set(a)
#a_no_dup = a_no_dup_loop(a)
print(a, a_no_dup, sep = "\n")
Usr_msg(a, a_no_dup)