#include<stdio.h>
#include<stdlib.h>
#define MAXN 200010

int compareInt(const void* a, const void* b);
int next();

unsigned long long seed;
int a[MAXN];

int main() {
  int n, q;
  scanf("%d%d%llu", &n, &q, &seed);
  for(int i = 0; i < 10000; i++) next();

  for(int i = 0; i < n; i++) a[i] = next();
  qsort(a, n, sizeof(int), compareInt);

  long long ans = 0;
  for(int i = 0; i < q; i++) {
    int x = next();
    int ub = n, mid, lb = -1;
    while(ub-lb != 1) {
      mid = (ub+lb)>>1;
      if(a[mid] >= x) ub = mid;
      else lb = mid;
    }
    ans ^= (long long)ub*i;
  }
  printf("%lld\n", ans);
  return 0;
}


int compareInt(const void* a, const void* b) {
  int aNum = *(int*)a;
  int bNum = *(int*)b;
  if( aNum < bNum ){
    return -1;
  }
  else if( aNum > bNum ){
    return 1;
  }
  return 0;
}

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