#pragma GCC optimize("O3", "Ofast", "unroll-loops")
#include <iostream>
#include <vector>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <algorithm>
#include <deque>
#include <climits>
#include <cmath>
#include <numeric>
#include <string>
#include <bitset>
#include <assert.h>
#include <iomanip>
using namespace std;
template <typename T>
using pqg = priority_queue<T, vector<T>, greater<T>>;
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
// template <typename T>
// using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
// #include <bits/stdc++.h>
// mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
// #define getrand(l, r) uniform_int_distribution<int>(l, r)(rng)
const long long infl = 1e18 + 1;
const int inf = 1e9 + 1;
const int mod1 = 1e9 + 7;
const int mod2 = 998244353;
const long double eps = 1e-7;
const int mod = mod2;
int add(int a, int b) { return (a + b) % mod; }
int sub(int a, int b) { return (a - b + mod) % mod; }
int mul(int a, int b) { return (int)((long long)a * b % mod); }
int pwr(int a, int b = mod - 2)
{
int res = 1;
for (; b > 0; b >>= 1, a = mul(a, a))
if (b & 1)
res = mul(res, a);
return res;
}
template <typename T>
bool chmax(T &a, T b)
{
if (b > a)
{
a = b;
return true;
}
return false;
}
template <typename T>
bool chmin(T &a, T b)
{
if (b < a)
{
a = b;
return true;
}
return false;
}
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define SZ(x) (int)x.size()
#define vec vector
#define dbg(x) cout << (#x) << " : " << x << endl;
using ll = long long;
using ull = unsigned long long;
void solve()
{
int n, q;
cin >> n >> q;
vec<int> a(n + 1);
for (int i = 1; i <= n; i++)
cin >> a[i];
vec<int> pref_xor_even(n + 1), pref_xor_odd(n + 1);
for (int i = 1; i <= n; i++)
{
pref_xor_even[i] = pref_xor_even[i - 1];
pref_xor_odd[i] = pref_xor_odd[i - 1];
if (i % 2 == 0)
{
pref_xor_even[i] = (pref_xor_even[i] ^ a[i]);
}
else
{
pref_xor_odd[i] = (pref_xor_odd[i] ^ a[i]);
}
}
while (q--)
{
int t;
cin >> t;
if (t == 1)
{
int i, j;
cin >> i >> j;
a[i] = j;
for (int i = 1; i <= n; i++)
{
pref_xor_even[i] = pref_xor_even[i - 1];
pref_xor_odd[i] = pref_xor_odd[i - 1];
if (i % 2 == 0)
{
pref_xor_even[i] = (pref_xor_even[i] ^ a[i]);
}
else
{
pref_xor_odd[i] = (pref_xor_odd[i] ^ a[i]);
}
}
}
else if (t == 2)
{
int l, u;
cin >> l >> u;
int len = u - l + 1;
if (len % 2 == 0)
{
cout << 0 << '\n';
continue;
}
int res = 0;
if (l % 2 == 0)
{
res = pref_xor_even[u] ^ pref_xor_even[l - 1];
}
else
{
res = pref_xor_odd[u] ^ pref_xor_odd[l - 1];
}
cout << res << '\n';
}
}
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
while (t--)
{
solve();
cout << (t ? "\n" : "");
}
}
