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#include <stdio.h>
#include <fstream>
#define MaxN 15000
using namespace std;
int main()
{
int a[MaxN],n,m,i,p,q,t,v,opt,srestanta;
ifstream f("datorii.in");
ofstream g("datorii.out");
f>>n>>m;
for(i=1;i<=n;i++)
f>>a[i];
for(i=1;i<=m;i++){
f>>opt;
if(opt==0){
f>>t;
f>>v;
a[t]-=v;
}
else if(opt==1){
f>>p;
f>>q;
srestanta=0;
for(;p<=q;p++){
if(a[p])
srestanta+=a[p];
}
g<<srestanta<<'\n';
}
}
f.close();
g.close();
return 0;
}