import java.io.*;
import java.math.*;
import java.util.*;

import static java.util.Arrays.*;

public class Main {
	private static final int mod = (int)1e9+7;

	final Random random = new Random(0);
	final IOFast io = new IOFast();

	/// MAIN CODE
	public void run() throws IOException {
//		int TEST_CASE = Integer.parseInt(new String(io.nextLine()).trim());
		int TEST_CASE = 1;
		while(TEST_CASE-- != 0) {
			n = io.nextInt();
			int q = io.nextInt();

			bit = new BIT[]{new BIT(n), new BIT(n)};
			
			for(int i = 0; i < q; i++) {
				char x = io.nextChar();
				int t = io.nextInt();
				int y = io.nextInt();
				int z = io.nextInt();
				if(x == 'C') {
					long ans = 0;
					ans += cnt(pos(1, t, y), pos(1, t, z - 1));
					ans += cnt(pos(0, t, z - 1), pos(0, t, y));
					io.out.println(ans);
				}
				else {
					int p = pos(x == 'L' ? 0 : 1, t, y);
					int d = p%2;
					p /= 2;
					bit[d].add(p + 1, z);
//					System.err.println(p);
				}
			}
		}
	}

	int n;
	BIT[] bit;
	long cnt(int p1, int p2) {
		int d1 = p1%2;
		int d2 = p2%2;
		p1 /= 2;
		p2 /= 2;
		int l, r;
//		System.err.println(p1 + " " + p2 + " " + d1 + " " + d2);
		if(d1 == d2) {
			if(d1 == 1 && p1 > p2 || d1 == 0 && p1 < p2) {
				return bit[d1].sum(n);
			}
			else {
				throw new RuntimeException();
//				l = Math.min(p1, p2);
//				r = Math.max(p1, p2);
//				return bit[d1].sum(l, r + 1);
			}
		}
		else {
			long ans = 0;
			if(d1 == 1) {
				l = Math.min(p1, p2);
				r = n - 1;
				ans += bit[d1].sum(p1, n);
				ans += bit[d2].sum(p2, n);
			}
			else {
				l = 0;
				r = Math.max(p1, p2);
				ans += bit[d1].sum(0, p1);
				ans += bit[d2].sum(0, p2);
			}
			return ans;
		}
//		System.err.println(p1 + " " + p2 + " " + d1 + " " + d2 + " " + l + " " + r + " " + bit.sum(l, r + 1));
//		return bit.sum(l, r + 1);
	}
	
	int pos(int d, int t, int x) {
		int p = t % (2 * n);
		if(d == 0) {
			x += p;
		}
		else {
			x -= p;
		}
		while(true) {
			if(x < 0) { d = 0; x = -x - 1; }
			else if(x >= n) { d = 1; x = n - 1 - (x - n); }
			else break;
		}
//		System.err.println("pos: " + d + " " + t + " " + x);
		return x * 2 + d;
	}
	
	static
	class BIT {
		final int n;
		final long[] bit;

		public BIT(int size) {
			n = size;
			bit = new long[n + 1];
		}
		

		// [i, j)
		public int sum(int i, int j) {
			return sum(j) - sum(i);
		}

		public int sum(int i) {
			int res = 0;
			for (; i > 0; i -= i & -i) {
				res += bit[i];
//				while(res >= mod) res -= mod;
			}
			return res;
		}

		// 1<=i<=n
		public void add(int i, long x) {
			if(i == 0) throw new RuntimeException();
			for (; i <= n; i += i & -i) {
				bit[i] += x;
//				while(bit[i] >= mod) bit[i] -= mod;
			}
		}
	}
	
	/// TEMPLATE
	static int gcd(int n, int r) { return r == 0 ? n : gcd(r, n%r); }
	static long gcd(long n, long r) { return r == 0 ? n : gcd(r, n%r); }
	
	static <T> void swap(T[] x, int i, int j) { T t = x[i]; x[i] = x[j]; x[j] = t; }
	static void swap(int[] x, int i, int j) { int t = x[i]; x[i] = x[j]; x[j] = t; }
	
	void main() throws IOException {
		//		IOFast.setFileIO("rle-size.in", "rle-size.out");
		try { run(); }
		catch (EndOfFileRuntimeException e) { }
		io.out.flush();
	}
	public static void main(String[] args) throws IOException { new Main().main(); }
	
	static class EndOfFileRuntimeException extends RuntimeException {
		private static final long serialVersionUID = -8565341110209207657L; }

	static
	public class IOFast {
		private BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		private PrintWriter out = new PrintWriter(System.out);

		void setFileIn(String ins) throws IOException { in.close(); in = new BufferedReader(new FileReader(ins)); }
		void setFileOut(String outs) throws IOException { out.flush(); out.close(); out = new PrintWriter(new FileWriter(outs)); }
		void setFileIO(String ins, String outs) throws IOException { setFileIn(ins); setFileOut(outs); }

		private static int pos, readLen;
		private static final char[] buffer = new char[1024 * 8];
		private static char[] str = new char[500*8*2];
		private static boolean[] isDigit = new boolean[256];
		private static boolean[] isSpace = new boolean[256];
		private static boolean[] isLineSep = new boolean[256];

		static { for(int i = 0; i < 10; i++) { isDigit['0' + i] = true; } isDigit['-'] = true; isSpace[' '] = isSpace['\r'] = isSpace['\n'] = isSpace['\t'] = true; isLineSep['\r'] = isLineSep['\n'] = true; }
		public int read() throws IOException { if(pos >= readLen) { pos = 0; readLen = in.read(buffer); if(readLen <= 0) { throw new EndOfFileRuntimeException(); } } return buffer[pos++]; }
		public int nextInt() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); int i = 0; int ret = 0; if(str[0] == '-') { i = 1; } for(; i < len; i++) ret = ret * 10 + str[i] - '0'; if(str[0] == '-') { ret = -ret; } return ret; }
		public long nextLong() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); int i = 0; long ret = 0; if(str[0] == '-') { i = 1; } for(; i < len; i++) ret = ret * 10 + str[i] - '0'; if(str[0] == '-') { ret = -ret; } return ret; }
		public char nextChar() throws IOException { while(true) { final int c = read(); if(!isSpace[c]) { return (char)c; } } }
		int reads(int len, boolean[] accept) throws IOException { try { while(true) { final int c = read(); if(accept[c]) { break; } if(str.length == len) { char[] rep = new char[str.length * 3 / 2]; System.arraycopy(str, 0, rep, 0, str.length); str = rep; } str[len++] = (char)c; } } catch(EndOfFileRuntimeException e) { ; } return len; }
		int reads(char[] cs, int len, boolean[] accept) throws IOException { try { while(true) { final int c = read(); if(accept[c]) { break; } cs[len++] = (char)c; } } catch(EndOfFileRuntimeException e) { ; } return len; }
		public char[] nextLine() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isLineSep); try { if(str[len-1] == '\r') { len--; read(); } } catch(EndOfFileRuntimeException e) { ; } return Arrays.copyOf(str, len); }
		public String nextString() throws IOException { return new String(next()); }
		public char[] next() throws IOException { int len = 0; str[len++] = nextChar(); len = reads(len, isSpace); return Arrays.copyOf(str, len); }
		public int next(char[] cs) throws IOException { int len = 0; cs[len++] = nextChar(); len = reads(cs, len, isSpace); return len; }
		public double nextDouble() throws IOException { return Double.parseDouble(nextString()); }
		public long[] nextLongArray(final int n) throws IOException { final long[] res = new long[n]; for(int i = 0; i < n; i++) { res[i] = nextLong(); } return res; }
		public int[] nextIntArray(final int n) throws IOException { final int[] res = new int[n]; for(int i = 0; i < n; i++) { res[i] = nextInt(); } return res; }
		public int[][] nextIntArray2D(final int n, final int k) throws IOException { final int[][] res = new int[n][]; for(int i = 0; i < n; i++) { res[i] = nextIntArray(k); } return res; }
		public int[][] nextIntArray2DWithIndex(final int n, final int k) throws IOException { final int[][] res = new int[n][k+1]; for(int i = 0; i < n; i++) { for(int j = 0; j < k; j++) { res[i][j] = nextInt(); } res[i][k] = i; } return res; }
		public double[] nextDoubleArray(final int n) throws IOException { final double[] res = new double[n]; for(int i = 0; i < n; i++) { res[i] = nextDouble(); } return res; }
	}
}