Competitive/Collaborative Programming Class

 import java.util.*;
/*
   Man Vo
   UVA 11847: Cut the Silver Bar
   11/20/11
*/
    
   public class CutTheSilverBar{
	   public static void main(String[]args){
		   Scanner input = new Scanner(System.in);
		   int cut = input.nextInt();
		   while(cut!=0){
			   System.out.println((int)Math.floor(Math.log10(cut)/Math.log10(2)));
			   cut = input.nextInt();
		   }
	   }
   }

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