var
a: integer;
begin
readln(a);
a := a mod 10;
case a of
1, 9:
write(1);
2, 8:
write(4);
3, 7:
write(9);
4, 6:
write(6);
5:
write(5);
end;
end.
var
a: integer;
begin
readln(a);
a := a mod 10;
case a of
1, 9:
write(1);
2, 8:
write(4);
3, 7:
write(9);
4, 6:
write(6);
5:
write(5);
end;
end.