var f,g:text;
    v:integer;
    s:array[1..50000] of longint;
    i,j,x,y,n,k,max:longint;
    h,m,se,ms,hh,mm,ss,mms:word;
begin
gettime(h,m,se,ms);
assign(f,'secv2.in');
reset(f);
readln(f,n,k);
read(f,v); s[1]:=v;
max:=s[1];
for i:=2 to k-1 do
   begin
     read(f,v);
     s[i]:=s[i-1]+v;
   end;
for i:=k to n do
  begin
    read(f,v);
    s[i]:=s[i-1]+v;
    if s[i]>max then
      begin
        max:=s[i];
        x:=1;
        y:=i;
      end;
  end;
close(f);
assign(g,'secv2.out');
rewrite(g);
i:=2;
while i<=n-k+1 do
  begin
    j:=i+k-1;
    while j<=n do
      begin
     if s[j]-s[i-1]>max then
        begin
          max:=s[j]-s[i-1];
          x:=i;
          y:=j;
        end;  inc(j);
       gettime(hh,mm,ss,mms);
       if mms-ms>298 then begin writeln(g,x,' ',y,' ',max); j:=n+1;i:=n;end;

     end;
  inc(i);
  end;
gettime(hh,mm,ss,mms);
if (ss-se=0)and(mms-ms<300) then writeln(g,x,' ',y,' ',max);
close(g);
end.