This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
long long fl[400000];
long long fk[400000];
long long a[300000];
long long n,q;
void updatel(long long s, long long x){
while(s<=n){
fl[s]=fl[s]^x;
s+=s&(-s);
}
}
long long getl(long long s){
long long sum=0;
while(s>0){
sum=sum^fl[s];
s-=s&(-s);
}
return sum;
}
void updatek(long long s, long long x){
while(s<=n){
fk[s]=fk[s]^x;
s+=s&(-s);
}
}
long long getk(long long s){
long long sum=0;
while(s>0){
sum=sum^fk[s];
s-=s&(-s);
}
return sum;
}
int main(){
cin>>n>>q;
for(long long i=1; i<=n; i++){
cin>>a[i];
if(i%2==0){
updatel(i/2, a[i]);
}else{
updatek(i/2+1, a[i]);
}
}
for(long long i=0; i<q; i++){
long long qur;
cin>>qur;
if(qur==1){
long long x,y;
cin>>x>>y;
if(x%2==0){
updatel(x/2, y^a[x]);
}else{
updatek(x/2+1, y^a[x]);
}
}else{
long long x,y;
cin>>x>>y;
if((y-x+1)%2==0){
cout<<"0"<<endl;
continue;
}
if(x%2==0){
long long tot;
tot=getl(y/2)^(getl(x/2-1));
cout<<tot<<endl;
}else{
long long tot;
tot=getk(y/2+1)^(getk(x/2));
cout<<tot<<endl;
}
}
}
}
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