#include <bits/stdc++.h>
using namespace std;
#define int long long
/*void brute(){
int n;
cin >> n;
vector<int> ar(n + 5, 0);
auto work = [&](int len) -> void {
vector<int> update(n + 5, 0);
for(int i = 1; i + len - 1 <= n; ++i){
update[i] += 1, update[i + len] -= 1;
}
for(int i = 1; i <= n; ++i) update[i] += update[i - 1];
for(int i = 1; i <= n; ++i) ar[i] += update[i];
};
for(int i = 1; i <= n; ++i){
work(i);
}
for(int i = 1; i <= n; ++i) cout << (ar[i] & 1) << " ";
cout << "\n";
}*/
signed main(){
ios::sync_with_stdio(0);
cin.tie(nullptr); cout.tie(nullptr);
int n, q;
cin >> n >> q;
vector<int> ar(n + 1);
for(int i = 1; i <= n; ++i){
cin >> ar[i];
}
while(q--){
int t, l, r;
cin >> t >> l >> r;
if(t == 1) ar[l] = r;
else{
int len = r - l + 1;
if(len & 1 ^ 1) cout << "0\n";
else{
int ans = 0;
for(int i = l; i <= r; i += 2){
ans ^= ar[i];
}
cout << ans << "\n";
}
}
}
return 0;
}
