var     a:array[1..15000] of 0..1000;
        v:array[1..15000] of longint;
        buf:array[1..15000] of integer;
        cod:0..1;
        n,x,y,j:0..15000;
        m,s,i,r:longint;
        f,t:text;

begin
  assign(f,'datorii.out');
  rewrite(f);
  assign(t,'datorii.in');
  reset(t);
  readln(t,n,m);

  settextbuf(f,buf);
  settextbuf(t,buf);
  for i:=1 to n do
    begin
      read(t,a[i]);
      for j:=i-(i xor (i and (i-1)))+1 to i do
      v[i]:=v[i]+a[j];
    end;

  for i:=1 to m do
    begin
      read(t,cod,x,y);
      case cod of
      0:  begin
            while x<=n do
              begin
                v[x]:=v[x]-y;
                x:=x+(x xor (x and (x-1)));
              end;
          end;
      1:  begin
            s:=0;
            while y>0 do
              begin
                s:=s+v[y];
                y:=y-(y xor (y and (y-1)));
              end;
            x:=x-1;
            r:=0;
            while x>0 do
              begin
                r:=r+v[x];
                x:=x-(x xor (x and (x-1)));
              end;
            writeln(f,s-r);
          end;
       end;
    end;
  close(t);
  close(f);
end.