10/09/2025 -01

a={1,2,3,4}
b={3,4,5,6}
print(a & b) # intersection
print(a | b) # join, + ,union
print(a - b) # from a remove intersection
print(a ^ b) # xor,(a | b) - (a & b)
x="hello"
y="world"
print(set(x) & set(set(y))
print(set(x) ^ set(set(y))