#include <bits/stdc++.h>
#define speed \
ios_base::sync_with_stdio(0); \
cin.tie(0); \
cout.tie(0);
#define oprecision \
cout.precision(30); \
cerr.precision(7);
#define ll long long
#define ld long double
#define ss string
#define pii pair<int, int>
#define pll pair<ll, ll>
#define forn(n) for (int i = 1; i <= n; i++)
#define forlr(l, r) \
for (int i = l; (l > r ? i >= r : i <= r); (l > r ? i-- : i++))
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define pb(x) push_back(x)
#define pc(x) __builtin_popcount(x)
#define pcll(x) __builtin_popcountll(x)
#define mp(x, y) make_pair(x, y)
#define F first
#define S second
using namespace std;
int n, q, a[200005], t[800005], e[800005];
void upd(int v, int l, int r, int x, int y) {
if (l == r) {
if (l & 1)
t[v] = y;
else
e[v] = y;
return;
}
int tm = (l + r) / 2;
if (x <= tm)
upd(v + v, l, tm, x, y);
else
upd(v + v + 1, tm + 1, r, x, y);
t[v] = (t[v + v] ^ t[v + v + 1]);
e[v] = (e[v + v] ^ e[v + v + 1]);
}
int get(int v, int l, int r, int x, int y, int z) {
if (r < x || y < l) return 0;
if (x <= l && r <= y) return (z ? t[v] : e[v]);
int tm = (l + r) / 2;
return (get(v + v, l, tm, x, y, z) ^ get(v + v + 1, tm + 1, r, x, y, z));
}
int main() {
speed;
oprecision;
// code
cin >> n >> q;
forn(n) {
int x;
cin >> x;
upd(1, 1, n, i, x);
}
while (q--) {
int type, l, r;
cin >> type >> l >> r;
if (type == 1) {
upd(1, 1, n, l, r);
}
if (type == 2) {
if ((r - l) % 2)
cout << 0 << "\n";
else
cout << ((l % 2) ? get(1, 1, n, l, r, 1) : get(1, 1, n, l, r, 0))
<< "\n";
}
}
// endl
#ifndef ONLINE_JUDGE
cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
#endif
return 0;
}
