#include <bits/stdc++.h>
using namespace std::literals::string_literals;
using i64 = long long;
using std::cout;
using std::endl;
using std::cin;

template<typename T>
std::vector<T> make_v(size_t a){return std::vector<T>(a);}

template<typename T,typename... Ts>
auto make_v(size_t a,Ts... ts){
  return std::vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));
}

int main() {
	// input
	int n, q; scanf("%d%d", &n, &q);
	assert(1 <= n and n <= 1e5);
	assert(1 <= q and q <= 1e5);

	std::vector<int> a(n);
	for(int i = 0; i < n; i++) {
		scanf("%d", &a[i]);

		assert(-1e9 <= a[i] and a[i] <= 1e9);
	}

	std::vector<int> L(q), R(q);
	for(int i = 0; i < q; i++) {
		scanf("%d%d", &L[i], &R[i]);

		assert(1 <= L[i] and L[i] <= n);
		assert(1 <= R[i] and R[i] <= n);
		assert(L[i] <= R[i]);

		L[i]--;
	}
	
	// solve
	for(int i = 0; i < q; i++) {
		std::vector<int> vec(R[i] - L[i]);
		std::copy(begin(a) + L[i], begin(a) + R[i], begin(vec));
		sort(begin(vec), end(vec));
		
		i64 ans = 0;
		for(auto v: vec) ans += std::abs(v - vec[vec.size() >> 1]);
		printf("%lld\n", ans);
	}
	return 0;
}