/*
ID: Sho10
LANG: C++
*/
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long int
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define sz size
#define f first
#define s second
#define pb push_back
#define er erase
#define in insert
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define PI 3.14159265359
#define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,q,a[5005],l,r;
int32_t main(){
CODE_START;
cin>>n>>q;
for(ll i=1;i<=n;i++)
{
cin>>a[i];
}
while(q--){
ll t;
cin>>t>>l>>r;
if(t==1){
a[l]=r;
}else if(t==2){
ll s1=1;
ll val=a[l];
if(l%2!=r%2){
cout<<0<<endl;
}else {
for(ll i=l+1;i<=r;i++)
{
if(s1%2==0){
val=((val^a[i]));
s1++;
}else {
s1++;
}
}
cout<<val<<endl;
}
}
}
}
