var a:array[1..1000]of longint;
n,i,kol:longint;
begin
read(n);
for i:=1 to n do
read(a[i]);
for i:=1 to n-1 do
if a[i]<a[i+1] then kol:=kol+1;
if kol=n then write('vorast') else writeln('net');
end.
var a:array[1..1000]of longint;
n,i:longint;
begin
read(n);
for i:=1 to n do
read(a[i]);
for i:=1 to n do
if i mod 2 <>0 then write(a[i],' ');
end.
