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#include <fstream>
using namespace std;
ifstream in("datorii.in");
ofstream out("datorii.out");
int v[15001];
int main()
{
int n, m, a, b, i, k, j, S=0;
in>>n>>m;
for (i=1; i<=n; i++)
in>>v[i];
for (i=1; i<=m; i++)
{
in>>k>>a>>b;
if (k==1)
{
for (j=a; j<=b; j++)
S=S+v[j];
out<<S<<'\n';
S=0;
}
else
{
v[a]=v[a]-b;
if (v[a]<0) v[a]=0;
}
}
return 0;
}