#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#define line() "author : AyazN";
#endif
typedef long long ll;
#define all(x) (x).begin(), (x).end()
#define isz(x) (int)(x.size())
#define int ll
typedef long double ld;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vpii;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
const int sz = 200500, inf = 1000000000;
const ll mod = 1000000007, INF = 1000000000000000000;
void precompute() {}
int a[sz];
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
#ifdef LOCAL
freopen("err.log", "w", stderr);
#endif
precompute();
int n, q;
cin >> n >> q;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
while (q--) {
int t;
cin >> t;
if (t == 1) {
int i, x;
cin >> i >> x;
a[i] = x;
} else {
int l, r;
cin >> l >> r;
if ((r - l + 1) & 1) {
int ans = 0;
for (int i = 1; i <= (r - l + 1); i++) {
if (i & 1) {
ans ^= a[l + i - 1];
}
}
cout << ans << '\n';
} else {
cout << 0 << '\n';
}
}
}
}
