#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
const int MAX = 3e5 + 6;
const int LOG = 26;
const int inf = 1e18;
const int mod = 1e9 + 7;
const int block = 320;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int st_t[MAX * 4], st_c[MAX * 4];
void upd_t(int v, int l, int r, int pos, int val){
if(l == r){
st_t[v] = val;
return;
}
int mid = (l + r) >> 1;
if(mid >= pos)
upd_t(v * 2, l, mid, pos, val);
else
upd_t(v * 2 + 1, mid + 1, r, pos, val);
st_t[v] = (int)(st_t[v * 2] ^ st_t[v * 2 + 1]);
}
void upd_c(int v, int l, int r, int pos, int val){
if(l == r){
st_c[v] = val;
return;
}
int mid = (l + r) >> 1;
if(mid >= pos)
upd_c(v * 2, l, mid, pos, val);
else
upd_c(v * 2 + 1, mid + 1, r, pos, val);
st_c[v] = (int)(st_c[v * 2] ^ st_c[v * 2 + 1]);
}
int ask_t(int v, int l, int r, int ql, int qr){
if(l > qr || r < ql) return 0;
if(l >= ql && r <= qr) return st_t[v];
int mid = (l + r) >> 1;
return (int)(ask_t(v * 2, l, mid, ql, qr) ^ ask_t(v * 2 + 1, mid + 1, r, ql, qr));
}
int ask_c(int v, int l, int r, int ql, int qr){
if(l > qr || r < ql) return 0;
if(l >= ql && r <= qr) return st_c[v];
int mid = (l + r) >> 1;
return (int)(ask_c(v * 2, l, mid, ql, qr) ^ ask_c(v * 2 + 1, mid + 1, r, ql, qr));
}
void _(){
int n, q;
cin >> n >> q;
vector < int > a(n + 1);
vector < int > T(n + 1);
vector < int > C(n + 1);
for(int i = 1; i <= n; i++){
cin >> a[i];
if(i & 1)
T[i / 2 + 1] = a[i];
else
C[i / 2] = a[i];
}
int sz_t = n / 2 + n % 2;
for(int i = 1; i <= sz_t; i++)
upd_t(1, 1, sz_t, i, T[i]);
int sz_c = n / 2;
for(int i = 1; i <= sz_c; i++)
upd_c(1, 1, sz_c, i, C[i]);
while(q--){
int type;
cin >> type;
if(type == 1){
int pos, val;
cin >> pos >> val;
if(pos & 1)
upd_t(1, 1, sz_t, pos / 2 + 1, val);
else
upd_c(1, 1, sz_c, pos / 2, val);
}
else {
int l, r;
cin >> l >> r;
if((r - l) % 2 == 1){
cout << 0 << endl;
continue;
}
if(l % 2 == 0){
l = l / 2;
r = r / 2;
cout << ask_c(1, 1, sz_c, l, r) << "\n";
}
else {
l = l / 2 + 1;
r = r / 2 + 1;
cout << ask_t(1, 1, sz_t, l, r) << "\n";
}
}
}
}
signed main() {
// ios_base::sync_with_stdio(false);
// cin.tie(NULL);
int t = 1;
// cin >> t;
while(t--) _();
}
