Tuples और Sets

colors = ("लाल", "हरा", "नीला")
months = ("Jan", "Feb", "Mar", "Apr")

print(colors[0])         # लाल
print(len(colors))       # 3
print("हरा" in colors)   # True

# Tuple unpacking
x, y, z = (10, 20, 30)
print(x, y, z)   # 10 20 30

# colors[0] = "पीला"  ← ERROR! Tuple नहीं बदलता

nums = {1, 2, 3, 2, 1, 4}
print(nums)   # {1, 2, 3, 4} duplicates हट गए!

# Set operations (Mathematics)
A = {1, 2, 3, 4}
B = {3, 4, 5, 6}

print(A & B)   # {3, 4}      - common
print(A | B)   # {1,2,3,4,5,6} - सब
print(A - B)   # {1, 2}     - difference

# List के duplicates हटाना
data = [1,2,2,3,3,4]
unique = list(set(data))
print(unique)  # [1, 2, 3, 4]