from .__init__ import *

def set_operation(minval = 3, maxval = 7, n_a = 4, n_b = 5):
    number_variables_a = random.randint(minval, maxval)
    number_variables_b = random.randint(minval, maxval)
    a = []
    b = []
    for i in range(number_variables_a):
        a.append(random.randint(1, 10))
    for i in range(number_variables_b):
        b.append(random.randint(1, 10))
    a=set(a)
    b=set(b)
    problem = "Given the two sets a=" + str(a) + " ,b=" + str(b) +  ".Find the Union,intersection,a-b,b-a and symmetric difference"
    solution ="Union is " + str(a.union(b)) + ",Intersection is " + str(a.intersection(b)) + ", a-b is " + str(a.difference(b)) + ",b-a is " + str(b.difference(a)) + ", Symmetric difference is " + str(a.symmetric_difference(b))
    return problem, solution