#include <bits/stdc++.h>
using namespace std;
#define int int64_t
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> ii;
typedef vector<ii> vii;
typedef vector<vii> vvii;
typedef vector<bool> vb;
typedef vector<vb> vvb;
#define x first
#define y second
#define pb push_back
#define loop(i,s,e) for(int i=s;i<e;i++)
#define loopr(i,s,e) for(int i=e-1;i>=s;i--)
#define chkmax(a,b) a=max(a,b)
#define chkmin(a,b) a=min(a,b)
#define all(a) a.begin(),a.end()
#define fast {ios_base::sync_with_stdio(false); cin.tie(0);}
const int inf = 1e18;
const int INF = 1e9;
const int mod = 1e9+7;
int32_t main() {
fast;
int n,q; cin >> n >> q;
vi a(n); loop(i,0,n) cin >> a[i];
loop(i,0,q){
int op; cin >> op;
if(op==1){
int ind, val; cin >> ind >> val;
ind--;
a[ind] = val;
}
else{
int l,r; cin >> l >> r; l--; r--;
int cur_xor_odd = 0;
int ans = 0;
loop(ind,l,r+1){
if((ind-l)%2 == 0) cur_xor_odd ^= a[ind];
ans ^= cur_xor_odd;
}
cout << ans << endl;
}
}
return 0;
}
