var
  a : array [1..1000] of longint;
  n,sum,i : longint;
begin
  readln(n);
  for i:=1 to n do
    readln(a[i]);
  sum:=0;
  for i:=1 to n do
    if a[i]=0 then
      sum:=sum+1;
  writeln(a[i]);
  writeln('5');
end.