uses crt;
var a:array[1..15] of integer;
i,k,j,n:integer;
begin
clrscr;
writeln('n ');
readln(n);
for i:=1 to n do
readln(a[i]);
for i:=1 to n-k do
write(a[i],' ');
i:=0;
k:=0;
repeat
i:=i+1;
if (a[i]<10)or(a[i] mod 10=a[i] div 10)then
begin
for j:=i to n-k-1 do
a[j]:=a[j+1];
k:=k+1;
end;
until(i>=n-k);
writeln;
for i:=1 to n-k do
write(a[i],' ');
readln
end.