public class Test { 
   
  static int HASHLEN = 1000; 
   
  public static void main(String[] args) { 
    // TODO Auto-generated method stub 
    String words [] = {"yes" ,"an" ,"go"}; 
    for(String word:words){ 
      int temp = hash(word.toCharArray()); 
      System.out.println(temp); 
    } 
  } 
  public static int hash(char[] word) { 
    int index = 0;  
    int i=0; 
    while(i<word.length) { 
      index += index * 31 + word[i];  
      i++; 
    }  
    return index % HASHLEN;  
  }  
}