import java.util.*;
class Main{
    public static void main (String[] args) {
        Scanner sc=new Scanner(System.in);
        int [] arr1={5,4,6,6,7,7,3};
 
        HashMap<Integer,Integer> map=new HashMap<>();
        for(int i=0;i<arr1.length;i++){
            map.put(arr1[i],map.getOrDefault(arr1[i],0)+1);
        }
        int max=0;
       for(int key:map.keySet()){
           if(map.get(key)>=max){
               max=map.get(key);
           }
       }
       System.out.println("No of operations required "+ (arr1.length-max));
    }
}

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