class Vector:
    def __init__(self, wektor):
        self.wektor = wektor

    def add(self, other):
        return Vector([a + b for a, b in zip(self.wektor, other.wektor)])

    def subtract(self, other):
        return Vector([a - b for a, b in zip(self.wektor, other.wektor)])

    def multiply(self, scalar):
        return Vector([a * scalar for a in self.wektor])

# Przykłady użycia
v1 = Vector([1, 2, 3])
v2 = Vector([4, 5, 6])

v_sum = v1.add(v2)
print("Suma:", v_sum.wektor)

v_diff = v1.subtract(v2)
print("Różnica:", v_diff.wektor)

scalar = 2
v_mul_scalar = v1.multiply(scalar)
print("Iloczyn wektora i skalar:", v_mul_scalar.wektor)