#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<cctype>
#include<cstdlib>
#include<algorithm>
#include<bitset>
#include<vector>
#include<list>
#include<deque>
#include<queue>
#include<map>
#include<set>
#include<stack>
#include<cmath>
#include<sstream>
#include<fstream>
#include<iomanip>
#include<ctime>
#include<complex>
#include<functional>
#include<climits>
#include<cassert>
#include<iterator>
#include<unordered_set>
#include<unordered_map>
using namespace std;
#define MAX 200002
int n;
int q;
char buf[3];
pair<int, int> mo(long long int t, long long int ich,bool x){  //false left,true right
	if (x==1){
		t %= (n+2);
		ich -= t;
		if (ich < 0){
			ich++;
			if (ich < 0){
				ich++;
			}
			x ^= 1;
		}
		ich = abs(ich);
		ich = 0;
	}
	else{
		t %= (n+2);
		ich += t;
		if (ich >= n){
			ich -= n-1;
			if (ich){
				ich--;
			}
			ich = n - 1 - ich;
			x ^= 1;
		}
	}
	return make_pair(ich, x);
}
struct BIT{
	long long int bit[MAX];
	BIT(){
		for (int i = 0; i < MAX; i++){
			bit[i] = 0;
		}
	}
	void add(int i, long long int x){
		i++;
		while (i < MAX){
			bit[i] += x;
			i += i&-i;
		}
	}
	long long int sum(int i){
		long long int r = 0;
		i++;
		while (i){
			r += bit[i];
			i -= i&-i;
		}
		return r;
	}
	long long int q(int a, int b){
		if (a > b){
			swap(a, b);
		}
		return sum(b) - sum(a - 1);
	}
};
BIT B[2];
void ins(int a, int b, int c){
	B[b].add(a, c);
}
int main(){
	scanf("%d%d", &n, &q);
	while (q--){
		pair<int, int> kari;
		scanf("%s", buf);
		int t, y, z;
		scanf("%d%d%d", &t, &y, &z);
		if (buf[0] == 'L'){
			kari = mo(t, y, false);
			ins(kari.first, kari.second, z);
			continue;
		}
		if (buf[0] == 'R'){
			kari = mo(t, y, true);
			ins(kari.first, kari.second, z);
			continue;
		}
		long long int ans = 0;
		t %= (n+2);
		z--;
		for (int i = 0; i < 2; i++){
			pair<int, int> kari = mo(t, y, i);
			pair<int, int> kari2 = mo(t, z, i);
			if (kari.first>kari2.first){
				swap(kari, kari2);
			}
				if (kari.second != kari2.second){
					int chu = 0;
					if (i == 0){
						chu = n-1;
					}
					ans += B[kari.second].q(kari.first,chu);
					ans += B[kari2.second].q(chu, kari2.first);
				}
				else{
					ans += B[kari.second].q(kari2.first, kari.first);
				}
		}
		printf("%lld\n", ans);
	}
	return 0;
}