. "" 

 ,   ,   
    1  N.    
      ,   
,     ,     
   .  ,    
   .      
   :     
    . ,  
1,3,4,5,6,7,8,10,12,16,17,20,21,22,23,24

1,3-8,10,12,16-17,20-24

 ,       
,      .

 . 
   N -   . 
  M -  ,  . 
       . 

 .         
  .    . 
     .


 1. 1<=M<=N<=100.
 2. 1<=M<=N<=1000000.

 1 ( 1)
 
10 5 
1 3 5 7 9

 
1,3,5,7,9

 2 ( 1)
 
40 16
1 3 4 5 6 7 8 10 12 16 17 20 21 22 23 24

 
1,3-8,10,12,16-17,20-24

 3 ( 1)
 
11 11
1 2 3 4 5 6 7 8 9 10 11

 
1-11

 4 ( 2)
 
10000 1 
5

 
5