 ""

 . ,       , 
  ,   .

 .        
N (1<=N<=100) -   .   N  
  N  -   .  
      10000.   , 
    100000.

 .       "YES", 
    "NO"    . 
        
    (    ) 
    - ,       .

input.txt	
2
0 -1
-1 0	

output.txt
YES
3
1 2 1
