#include <bits/stdc++.h>
using namespace std;
uint32_t x = 0, y = 1, z = 2, w = 3;
uint32_t generate() { 
    uint32_t t = (x^(x<<11));
    x = y;
    y = z;
    z = w;
    w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); 
    return w;
}

uint32_t b;
int main(void) {
    cin >> x;
    vector<uint32_t> a;
    for (int i = 0; i < 10000001; i++) {
        b = generate();
        if(b<2200000000) a.push_back(b);
    }
    sort(a.begin(), a.end());
    printf("%u\n", a[5000000]);
    return 0;
}