#This is a function to return elements common to both keys and values in a dictionary in a list

#The declared dictionary
elements = {
    "A": "K",
    "B": "D",
    "C": "A",
    "D": "Z"
}
#Function definition
def common_elements(elements):
#loop through the values and return the elements in a list
    for num in elements.items():
        if num in elements.keys() and num in elements.values():
            print(list(num))