#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=5e5+5;
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()
ll n,q,ty,x,y,u[N],bit[2][N];
void upd(ll B,ll id,ll val){
for(int i=id;i<N;i+=(i&-i))bit[B][i]^=val;
}
ll ask(ll B,ll id){
ll tmp=0;
for(int i=id;i>0;i-=(i&-i))tmp^=bit[B][i];
return tmp;
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
cin>>n>>q;
REP1(i,n)cin>>u[i],upd(i&1,i,u[i]);
while(q--){
cin>>ty>>x>>y;
if(ty==1){
upd(x&1,x,u[x]);
upd(x&1,x,u[x]=y);
}else{
if((y-x+1)&1){
cout<<(ask(y&1,y)^ask(y&1,x-1))<<"\n";
}else{
cout<<"0\n";
}
}
}
return 0;
}
