# define your list
my_list = [1, 2, 3, 2, 4, 5, 3, 6]

# create a list using list comprehension of items with 
# count greater than 1
duplicates = [x for x in my_list if my_list.count(x) > 1]

# use set() to remove duplications
duplicates = set(duplicates)

# print the duplicates if present
if len(duplicates) != 0:
    print("Duplicates:", duplicates)
else:
    print('No duplicates found!')