#include <bits/stdc++.h>
using namespace std;

typedef long long   signed int LL;
typedef long long unsigned int LU;

#define incID(i, l, r) for(int i = (l)    ; i <  (r); i++)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); i++)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); i--)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); i--)
#define  inc(i, n) incID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define  dec(i, n) decID(i, 0, n)
#define dec1(i, n) decII(i, 1, n)

#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))

#define PB push_back
#define EB emplace_back
#define MP make_pair
#define FI first
#define SE second
#define PQ priority_queue

#define  ALL(v)  v.begin(),  v.end()
#define RALL(v) v.rbegin(), v.rend()
#define  FOR(it, v) for(auto it =  v.begin(); it !=  v.end(); ++it)
#define RFOR(it, v) for(auto it = v.rbegin(); it != v.rend(); ++it)

template<typename T> bool   setmin(T & a, T b) { if(b <  a) { a = b; return true; } else { return false; } }
template<typename T> bool   setmax(T & a, T b) { if(b >  a) { a = b; return true; } else { return false; } }
template<typename T> bool setmineq(T & a, T b) { if(b <= a) { a = b; return true; } else { return false; } }
template<typename T> bool setmaxeq(T & a, T b) { if(b >= a) { a = b; return true; } else { return false; } }
template<typename T> T gcd(T a, T b) { return (b == 0 ? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }

// ---- ----

int n, q;
LU seed;

const int B = 18;

const int W = 1 << B, K = 1 << (31 - B);
vector<int> v[K];
int s[K + 1];

LL r(int b) {
	int bw = b / W;
	return s[bw] + (lower_bound(ALL(v[bw]), b) - v[bw].begin());
}

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

int main() {
	cin >> n >> q >> seed;
	inc(i, 10000) { next(); }
	
	inc(i, n) {
		int a = next();
		v[a / W].PB(a);
	}
	inc(i, K) { sort(ALL(v[i])); }
	
	inc1(i, K) { s[i] = s[i - 1] + v[i - 1].size(); }
	
	LL ans = 0;
	inc(i, q) {
		int b = next();
		ans ^= r(b) * i;
	}
	
	cout << ans << endl;
	
	return 0;
}