import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int n = Integer.parseInt(sa[0]);
		int q = Integer.parseInt(sa[1]);
		long[] s = new long[q];
		long[] t = new long[q];
		for (int i = 0; i < q; i++) {
			sa = br.readLine().split(" ");
			s[i] = Long.parseLong(sa[0]);
			t[i] = Long.parseLong(sa[1]);
		}
		br.close();

		long[] b = new long[n + 1];
		b[0] = 1;
		for (int i = 1; i < b.length; i++) {
			b[i] = b[i - 1] * 2;
		}

		PrintWriter pw = new PrintWriter(System.out);
		for (int i = 0; i < q; i++) {
			long ans = 0;
			long now = s[i];
			while (now < t[i]) {
				for (int j = n; j >= 0; j--) {
					if (now % b[j] == 0 && now + b[j] <= t[i]) {
						ans++;
						now += b[j];
						break;
					}
				}
			}
			pw.println(ans);
		}
		pw.flush();
	}
}