from functools import reduce

class Num:
    n = 0
    l = []
    over = False

    def __init__(self, limit):
        if limit < 2:
            self.over = True
        self.num = limit
        self.l = [1] * limit
        self.l[:2] = [2, 2]

    def multi(self):
        return reduce(lambda x, y: x * y, self.l, 1)

    def add(self):
        return sum(self.l)

    def is_overload(self):
        return self.multi() > self.add()

    def inc(self):
        if self.over:
            return
        if not self.is_overload():
            self.l[0] += 1
        else:
            for i in range(len(self.l)):
                if self.l[i + 1] < self.l[i]:
                    self.l[i + 1] += 1
                    self.l[:i] = [self.l[i + 1]] * (i + 1)
                    if self.is_overload():
                        self.over = True

    def eq(self):
        return self.multi() == self.add()

    def get_min(self):
        while not self.eq():
            self.inc()
            if self.over:
                return NULL
        return self.add()

for x in range(3, 20):
    f = Num(x)
    print(x, f.get_min())