//#pragma GCC optimize("Ofast,O2,O3,unroll-loops")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
void debug_out() { cerr << endl; }
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
cerr << "[" << H << "]";
debug_out(T...);
}
#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define lla(x) (x).rbegin(), (x).rend()
#define bpc(x) __builtin_popcount(x)
#define bpcll(x) __builtin_popcountll(x)
clock_t startTime;
double getCurrentTime() {
return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}
#define MP make_pair
typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.000001;
const int MOD = 998244353;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 1e6 + 3e2;
const int M = 1222;
struct Fenwick{
vector<int> a;
vector<int> f;
void add(int x, int y){
while (x < f.size()){
f[x] ^= y;
x += (-x & x);
}
}
int get(int x){
int res = 0;
while (x > 0){
res ^= f[x];
x -= (-x & x);
}
return res;
}
void update(int i, int x){
add(i, a[i]);
a[i] = x;
add(i, a[i]);
}
int get(int l, int r){
return get(r) ^ get(l - 1);
}
void init(vector<int> aa){
a = aa;
f.resize(a.size());
for (int i = 1; i < a.size(); i++) add(i, a[i]);
}
};
void solve(int TC) {
int n, q;
cin >> n >> q;
vector<int> a(n + 1), b(n + 1);
for (int i = 1; i <= n; i++){
if (i & 1) cin >> a[i]; else
cin >> b[i];
}
Fenwick odd, even;
odd.init(a);
even.init(b);
while (q--){
int t;
cin >> t;
if (t == 1){
int i, x;
cin >> i >> x;
if (i & 1) odd.update(i, x); else
even.update(i, x);
} else {
int l, r;
cin >> l >> r;
if ((r - l + 1) % 2 == 0){
cout << 0 << endl;
} else {
cout << (l % 2 == 1 ? odd.get(l, r) : even.get(l, r)) << endl;
}
}
}
}
int main() {
startTime = clock();
ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#ifdef dddxxz
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int TC = 1;
//cin >> TC;
for (int test = 1; test <= TC; test++) {
//debug(test);
//cout << "Case #" << test << ": ";
solve(test);
}
cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;
return 0;
}
