#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)

#define ll long long
#define ull unsigned ll

void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(double *x){scanf("%lf",x);}
int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;}
template <class T, class S> void reader(T *x, S *y){reader(x);reader(y);}
template <class T, class S, class U> void reader(T *x, S *y, U *z){reader(x);reader(y);reader(z);}
template <class T, class S, class U, class V> void reader(T *x, S *y, U *z, V *w){reader(x);reader(y);reader(z);reader(w);}

void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(double x, char c){printf("%.15f",x);mypc(c);}
void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);}
void writer(const char x[], char c){int i;for(i=0;x[i]!='\0';i++)mypc(x[i]);mypc(c);}
template<class T> void writerLn(T x){writer(x,'\n');}
template<class T, class S> void writerLn(T x, S y){writer(x,' ');writer(y,'\n');}
template<class T, class S, class U> void writerLn(T x, S y, U z){writer(x,' ');writer(y,' ');writer(z,'\n');}
template<class T> void writerArr(T x[], int n){int i;if(!n){mypc('\n');return;}rep(i,n-1)writer(x[i],' ');writer(x[n-1],'\n');}

char memarr[77000000]; void *mem = memarr;
#define MD 1000000007

template<class T>
struct fenwick{
  int size, memory; T *data;
  void malloc(int mem){memory=mem;data=(T*)std::malloc(sizeof(T)*mem);}
  void *malloc(int mem, void *workMemory){memory=mem;data=(T*)workMemory;return (void*)(data+mem);}
  void free(void){memory=0;free(data);}
  void init(int N){size=N;memset(data,0,sizeof(T)*N);}
  void add(int k, T val){while(k<size)data[k]+=val,k|=k+1;}
  T get(int k){T res=0;while(k>=0)res+=data[k],k=(k&(k+1))-1;return res;}
  T range(int a, int b){if(a>b)return 0;return get(b)-get(a-1);}
  int kth(T k){int i=0,j=size,c;T v;while(i<j){c=(i+j)/2;v=get(c);if(v<=k)i=c+1;else j=c;}return i==size?-1:i;}
};

int N, Q;
char X[10]; int T, Y, Z;
fenwick<ll> tR, tL;

int main(){
  int i, j, k;
  int a, b;
  ll res;

  reader(&N,&Q);
  mem = tR.malloc(2*N, mem);
  mem = tL.malloc(2*N, mem);
  tR.init(2*N);
  tL.init(2*N);

  while(Q--){
    reader(X,&T,&Y,&Z);
    if(X[0]=='R'){
      a = (Y - T) % (2*N);
      if(a < 0) a += 2*N;
      tR.add(a, Z); // printf("tR add %d %d\n",a,Z);
    }
    if(X[0]=='L'){
      a = (N - 1 - Y - T) % (2*N);
      if(a < 0) a += 2*N;
      tL.add(a, Z); // printf("tL add %d %d\n",a,Z);
    }
    if(X[0]=='C'){
      res = 0;
      Z--;
      
      a = (Y - T) % (2*N);
      b = (Z - T) % (2*N);
      if(a < 0) a += 2*N;
      if(b < 0) b += 2*N;
      if(a <= b){
        res += tR.range(a, b);
//        printf("tR range %d %d\n",a,b);
      } else {
        res += tR.range(0,b)+tR.range(a,2*N-1);
//        printf("tR range %d %d, %d %d\n",0,b,a,2*N-1);
      }

      a = (2*N - 1 - Z - T) % (2*N);
      b = (2*N - 1 - Y - T) % (2*N);
      if(a < 0) a += 2*N;
      if(b < 0) b += 2*N;
      if(a <= b){
        res += tR.range(a, b);
//        printf("tR range %d %d\n",a,b);
      } else {
        res += tR.range(0,b)+tR.range(a,2*N-1);
//        printf("tR range %d %d, %d %d\n",0,b-1,a+1,2*N-1);
      }
      
      a = (N - 1 - Z - T) % (2*N);
      b = (N - 1 - Y - T) % (2*N);
      if(a < 0) a += 2*N;
      if(b < 0) b += 2*N;
      if(a <= b){
        res += tL.range(a, b);
//        printf("tL range %d %d\n",a,b);
      } else {
        res += tL.range(0,b)+tL.range(a,2*N-1);
//        printf("tL range %d %d, %d %d\n",0,b-1,a+1,2*N-1);
      }

      a = (N + Y - T) % (2*N);
      b = (N + Z - T) % (2*N);
      if(a < 0) a += 2*N;
      if(b < 0) b += 2*N;
      if(a <= b){
        res += tL.range(a, b);
//        printf("tL range %d %d\n",a,b);
      } else {
        res += tL.range(0,b)+tL.range(a,2*N-1);
//        printf("tL range %d %d, %d %d\n",0,b-1,a+1,2*N-1);
      }

      writerLn(res);
    }
  }

  return 0;
}