public int[] sortIndex(int[] userCount){
		int[] indexSorted = new int[this.userNumber];
		int temp=0;
		for(int i=0; i<this.userNumber; i++){
			indexSorted[i]=i;
		}
		
		for(int i=0; i<this.userNumber; i++)
			for(int j=0; j<this.userNumber-1; j++){
				if(userCount[j]<userCount[j+1]){
					temp=userCount[j];
					userCount[j]=userCount[j+1];
					userCount[j+1]=temp;
					
					temp=indexSorted[j];
					indexSorted[j]=indexSorted[j+1];
					indexSorted[j+1]=temp;
				}
			}
		return indexSorted;
	}