      	20 - 20000 
       10 	1 
             1000    /    	0.3  
0.5 
 ...     / 	500  
5 
        40   16000   	0.03 %
      1000 / 250   1000   	48 
38 
 /            ""  ,      20   /    	67 
58 
 /            ""  ,      20    /    	72 
63 
 ...  ,           ""   /  	200  
2
    	64 
    	20 
     100   1000      	10 
    	30 
         ""  	3 
,   	12 
   	20 
         	0.5 
   	15 