import collections
co1 = collections.Counter(['C','L','E','O','P','A','T','R','A'])
co2 = collections.Counter('JULIUS CAESAR')
print (co1
)
print (co2
)
print ("addition n",co1 + co2 )# Prints addition of sets
print ("Subtractionn", co1 - co2) # Prints substration of sets
print ("Union n", co1 | co2) # Prints union of sets
print( "Intersection n", co1 & co2)  # Prints intersection of sets