import random as r

def __init__(self):
    randomSet = ()

def insert(self, val):
    """
    :type val: int
    :rtype: bool
    """
    if val is None:
        return None
    if val not in self:
        self.add(val)
        return True
    return False

def remove(self, val):
    """
    :type val: int
    :rtype: bool
    """
    if val not in self:
        return False
    self.discard(val)
    return True
    

def getRandom(self):
    """
    :rtype: int
    """
    rand = r.self
    rand = r.self
    return rand
    


# Your RandomizedSet object will be instantiated and called as such:
# obj = RandomizedSet()
# param_1 = obj.insert(val)
# param_2 = obj.remove(val)
# param_3 = obj.getRandom()