" "

      . 
       .

 . 
   INPUT.TXT     N  M, 
       
(1<=N<=100, 0<=M<=10000),    .   
  ,   .

 . 
   OUTPUT.TXT    -   
.

  	
3 4
1 1 1 2 1 3 2 3

  
1

  	
5 3
1 1 1 2 2 1

  
4

  	
5 0

  
5