diff --git a/aysat/lifecoding/SQL1.sql b/aysat/lifecoding/SQL1.sql
index 667bc05..75ac5d3 100644
--- a/aysat/lifecoding/SQL1.sql
+++ b/aysat/lifecoding/SQL1.sql
@@ -1,3 +1,20 @@
+''' 
+ Задача 1.
+
+Таблица users
+
+| user_id | date       |
+| ---     | ---        |
+| 1       | 2018-07-01 |
+| 234     | 2018-07-02 |
+| 3       | 2018-07-02 |
+| 1       | 2018-07-02 |
+| ...     | ...        |
+| 234     | 2018-10-04 |
+
+Нужно найти ежемесячное процентное изменение месячной аудитории активных пользователей.
+'''
+
 with cte1 as (
 select count(distinct(user_id)) as mau,
 date_trunc('month', date) as month