zruti 2

program zruti;
{$APPTYPE CONSOLE}
uses SysUtils;
type input=-10000..10000;
var a,b,p,k:input;
begin
{ TODO -oUser -cConsole Main : Insert code here }
  readln(a,b,p,k);
  if b>a*p then
    begin
      if a*p>b-(a*p) then
        begin
            if a*p>(b-(a*p))*k then writeln('vymrie');
            if a*p<(b-(a*p))*k then writeln('rastie');
            if a*p=(b-(a*p))*k then writeln('rovnovaha');
        end;
      if a*p<b-(a*p) then
        begin
            if a*p<(b-(a*p))*k then writeln('rastie');
            if a*p>(b-(a*p))*k then writeln('vymrie');
            if a*p=(b-(a*p))*k then writeln('rovnovaha');
        end;
    end;
  if b<a*p then
    begin
      if a*p>(a*p)-b then
        begin
              if a*p>((a*p)-b)*k then writeln('vymrie');
              if a*p<((a*p)-b)*k then writeln('rastie');
              if a*p=((a*p)-b)*k then writeln('rovnovaha');
        end;
      if a*p<(a*p)-b then
        begin
              if a*p<((a*p)-b)*k then writeln('rastie');
              if a*p>((a*p)-b)*k then writeln('vymrie');
              if a*p=((a*p)-b)*k then writeln('rovnovaha');
        end;
    end;
    if a*p=b-(a*p) then writeln('rovnovaha');
  readln;
end.