import java.util.Scanner;
import java.util.Arrays;

public class Main {
    public static void main(String args[]){
        Scanner stdIn = new Scanner(System.in);
        int n = stdIn.nextInt(); //長さ
        int q = stdIn.nextInt(); //クエリ数
        int seisu[] = new int[n];
        
        for(int i = 0; i < n; i++){
            seisu[i] = stdIn.nextInt();
        }
        
        for(int i = 0; i < q; i++){
            int l = stdIn.nextInt();
            int r = stdIn.nextInt();
            int use[] = new int[r - l + 1];
            int index = 0;
            int sum = 0;
            
            for(int j = l - 1; j < r; j++){
                use[index] = seisu[j];
                sum += seisu[j];
                index++;
            }
            
            Arrays.sort(use);
            
            int median = 0;
            
            if((r - l + 1) % 2 == 0){
                median = sum / ((r - l + 1) / 2);
            }else{
                median = use[(r - l + 1) / 2];
            }
            
            int min = 0;
            
            for(int j = l - 1; j < r; j++){
                if(median - seisu[j] >= 0){
                    min += median - seisu[j];
                    
                }else{
                    min += seisu[j] - median;
                }
            }
            
            System.out.println(min);
        }
        
    }
}