# set - collection of unique values

# Create an empty set
s = set()

# Add elements to the set
s.add(1)
s.add(2)
s.add(3)
s.add(4)
s.add(5)
s.add(6)

# Remove value 2
s.remove(2)

print(s)

# Lenght of the set
print(f"The set has {len(s)} elements")