User guide

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!
. , 
     , 
     ,
   .   
.

............................................................... 10
.............................................. 11
.......................................................11
 ..................................................... 11
 .................................................................. 12
.....................................................................12
 ........................................................................12
 ()..................................12
 ..................................................................13
 ......................................................................13
.............................................. 14
 ....................................................................14
 ..........................................................14
 ......................................................14
...........................................14
............ 14
.......................................................... 15
......................................... 16
 ....................................... 17