## https://yukicoder.me/problems/no/702

import heapq

MAX = 2 ** 32 - 1

class Generator:

    def __init__(self, seed):
        self.x = seed
        self.y = 1
        self.z = 2
        self.w = 3

    def generate(self):
        t = (self.x ^ (self.x << 11)) & MAX
        self.x = self.y
        self.y = self.z
        self.z = self.w
        self.w = ((self.w ^ (self.w >> 19)) ^ (t ^ (t >> 8))) & MAX
        return self.w


def main():
    seed = int(input())

    generator = Generator(seed)

    N = 10000001
    n2 = (N - 1) // 2
    n1 = n2 + 1
    queue = []
    for _ in range(n1):
        a = generator.generate()
        heapq.heappush(queue, a)

    for _ in range(n2):
        a = generator.generate()
        heapq.heappush(queue, a)
        heapq.heappop(queue)
    
    print(heapq.heappop(queue))





if __name__ == "__main__":
    main()