queue

const count = 100000;
var queue:array[1..count] of longint;
    i,j,n,s,e,a:longint;
procedure push(a:longint);
 begin
  inc(e); queue[e]:=a;
 end;
procedure pop;
 begin
  inc(s);
 end;
Begin
read(n);
for i:=1 to n do
 begin
  read(a); push(a);
 end;
end.