Вступление.
1. -----------------3------------ ----------------5----------- ----------------6----------- -----------------2--3--6--5-
2. ------3--4--3------3--4--3---- -----3--4--3------3--4--3--- -----3--4--3------3--4--3--- -----3--4--3----------------
3. ------------------------------ ---------------------------- --3------------------------- --5-------------------------
4. ----5------------------------- --4------------------------- ---------------------------- ----------------------------
5. ------------------------------ ---------------------------- ---------------------------- ----------------------------
6. ------------------------------ ---------------------------- ---------------------------- ----------------------------