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#include <iostream>
#include <fstream>
using namespace std;
int main()
{
fstream f("datorii.in",ios::in);
fstream g("datorii.out",ios::out);
long long int M,N,vec[15001],i,j,nr,T,V,P,Q,s;
f>>N>>M;
for(i=1;i<=N;i++)
f>>vec[i];
for(i=1;i<=M;i++){
f>>nr;
if(nr==0){
f>>T>>V;
vec[T]-=V;
}else if(nr==1){
f>>P>>Q;
s=0;
for(j=P;j<=Q;j++)
s+=vec[j];
g<<s<<'\n';
}
}
}