1
- , 2
=============================
. .
=====================================
2000
===========================================================
. ?
===============================================
================
()
=============================
======================================
=======================
.
==========================
=======
-
====================
============================
- .
=====================
=========================
==============================
1 ( 1 )
=====================-
"1". - -
============================================
"2". - -
===========================================
"3". - -
=========================================
"4". - -
===========================================
"5". - -
==========================================
"6". - -
==========================================
"7". - -
==========================================
"8". - -
=========================================
"9". - -
=============================================
. 1,2,3
==========================
. 4,5,6
========================
. 7,8,9.
=========================
. - 11 22
========================
1,10,19,28- ()
===================================================
2,11,20,29 ()
==========================================