#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define pb push_back
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define sz(v) v.size()
#define x first
#define y second
#define int long long
#define nl "\n"
using namespace std;
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair <ll, ll> pii;
const int N = (int)3e5 + 7;
const int M = (int)7e6 + 7;
const ll MOD = (ll)1e9 + 7;
const int inf = (int)1e9 + 7;
const ll INF = (ll)1e18 + 7;
pii dir[] = {{-1, 0}, {1, 0}, {0, 1}, {0, -1}};
int n, q, a[N];
void solve() {
cin >> n >> q;
for(int i = 1; i <= n; ++i) cin >> a[i];
while(q--) {
char c;
cin >> c;
int l, r;
cin >> l >> r;
if(c == '1') a[l] = r;
else {
int res = 0;
for(int i = l; i <= r; ++i) {
int x = (i-l+1) * (r-i+1);
if(x & 1) res ^= a[i];
}
cout << res << nl;
}
}
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
int test = 1;
//cin >> test;
for(int i = 1; i <= test; i++) {
//cout << "Case " << i << ":\n";
solve();
}
return 0;
}
