Common Elements In Two Lists

Question::
Define a function is_common() that takes two lists and returns True if they have at least one member in common, False otherwise.

Code::

def is_common(d,n):
    for i in d:
        for j in n:
             if(j==i):
              return True
    return False 
n=input("Enter list: ")
nt=n.split(",")    
d=input("Enter another list: ")
dm=d.split(",")
if(is_common(dm,nt)):
    print("Yes There are Common Elements")
else:
    print("No There are no Common Elements")
    

Output::