#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(ll i=0;i<n;i++)
#define repl(i,l,r) for(ll i=(l);i<(r);i++)
#define per(i,n) for(ll i=(n)-1;i>=0;i--)
#define perl(i,r,l) for(ll i=r-1;i>=l;i--)
#define fi first
#define se second
#define pb push_back
#define ins insert
#define pqueue(x) priority_queue<x,vector<x>,greater<x>>
#define all(x) (x).begin(),(x).end()
#define CST(x) cout<<fixed<<setprecision(x)
#define rev(x) reverse(x);
using ll=long long;
using vl=vector<ll>;
using vvl=vector<vector<ll>>;
using pl=pair<ll,ll>;
using vpl=vector<pl>;
using vvpl=vector<vpl>;
const ll MOD=1000000007;
const ll MOD9=998244353;
const int inf=1e9+10;
const ll INF=4e18;
//const ll dy[8]={-1,0,1,0,1,1,-1,-1};
//const ll dx[8]={0,-1,0,1,1,-1,1,-1};
template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

int main(){
    ll n,q;cin >> n >>q;
    vl l(n),r(n);
    while(q--){
        ll p=l[0],pp=r[n-1];
        rep(i,n-1)l[i]=l[i+1];
        per(i,n-1)r[i+1]=r[i];
        l[n-1]=pp,r[0]=p;
        char x;cin >> x;
        ll a,b;cin >> a >> b;
        if(x=='R'){
            r[a]+=b;
        }
        else if(x=='L'){
            l[a]+=b;
        }
        else{
            ll ans=0;
            for(int i=a;i<b;i++)ans+=l[i]+r[i];
            cout << ans <<endl;
        }

    }
}