import java.io.*;
import java.util.TreeSet;

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]);
		TreeSet<Integer> setL = new TreeSet<>();
		TreeSet<Integer> setR = new TreeSet<>();
		setL.add(0);
		setR.add(n * 2);
		PrintWriter pw = new PrintWriter(System.out);
		for (int i = 0; i < q; i++) {
			sa = br.readLine().split(" ");
			int t = Integer.parseInt(sa[0]);
			int x = Integer.parseInt(sa[1]);
			if (t == 1) {
				int ans = x - 1;
				ans = Math.min(ans, x - setL.floor(x));
				ans = Math.min(ans, setR.ceiling(x) - x);
				pw.println(ans);
			} else {
				int c = Integer.parseInt(sa[2]);
				setL.add(x - c);
				setR.add(x + c);
			}
		}
		pw.flush();
		br.close();
	}
}