// first set
let setA: Set = [2, 3, 5]
print("Set A: ", setA)
// second set
let setB: Set = [1, 2, 6]
print("Set B: ", setB)
// perform subtraction operation
print("Subtraction: ", setA.subtracting(setB))
// first set
let setA: Set = [2, 3, 5]
print("Set A: ", setA)
// second set
let setB: Set = [1, 2, 6]
print("Set B: ", setB)
// perform symmetric difference operation
print("Symmetric Difference: ", setA.symmetricDifference(setB))