 ""

      
 k (1<=k<=500) .     
  .       
  ,      .

 ,   ,     
  (   0  k-1), :
1)         .
2)       .

 
   INPUT.TXT    k,  -  N 
(0<=N<=100000).   N ,     
 .     -   0  100000.

 
   OUTPUT.TXT   , 
        . 
  ,    .

  INPUT.TXT	
100 5
0 210 99 551 99	

  OUTPUT.TXT
10
51
