#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;

ull seed;
uint next() {
    seed = seed ^ (seed << 13);
    seed = seed ^ (seed >> 7);
    seed = seed ^ (seed << 17);
    return (seed >> 33);
}

int main() {
    int n, q;
    cin >> n >> q >> seed;
    for (int i = 0; i < 10000; ++i) {
    	next();
    }
    
    vector<uint> a(n);
    for (int i = 0; i < n; i++) {
    	a[i] = next();
    }
	sort(a.begin(), a.end());
  	a.push_back(0xffffffff);
  
	const uint shift = 11;
	const uint types = 1 << (31 - shift); 
	vector<int> b(types + 1);
  	uint curr = 0;
	for (int i = 0; i < n; ++i) {
    	if (a[i] >= (curr << shift)) {
        	b[curr] = i;
        	++curr;
        	--i;
        }
    }
  	b[types] = n;
  
    ll ans = 0;
    for (int i = 0; i < q; ++i) {
        uint x = next();
    	uint s = x >> shift;
    	uint cnt = b[s];
      	while (a[cnt] < x) {
			++cnt;
        }
        ans ^= ll(cnt) * i;
    }
    cout << ans << endl;
    return 0;
}