program datorii;
type vect=array[1..3] of longint;
     vector=array[1..15000] of longint;
var suma,n,m,i,j,k:longint;
    f,g:text;
    datorie:vector;
    s:vect;
begin
assign(f,'datorii.in');
reset(f);
assign(g,'datirii.out');
rewrite(g);
read(f,n,m);
for i:= 1 to n do
read(f,datorie[i]);
for j:=1 to m do
for i:= 1 to 3 do
	read(f,s[i]);
	if s[1]=0 then
    datorie[s[2]]:=datorie[s[2]]-s[3]
  else
	  begin
  suma:=0;
  	  for k:= s[2] to s[3] do
     suma:=suma+datorie[k];
  writeln(g,suma);
  end;
close(f);
close(g);
end.