#include <iostream>
#include <string>
#include <vector>
#include <array>
#include <tuple>
#include <stack>
#include <queue>
#include <deque>
#include <algorithm>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <bitset>
#include <cmath>
#include <functional>
#include <cassert>
#include <climits>
#include <iomanip>
#include <numeric>
#include <memory>
#include <random>
#include <thread>
#include <chrono>
#define allof(obj) (obj).begin(), (obj).end()
#define range(i, l, r) for(int i=l;i<r;i++)
#define unique_elem(obj) obj.erase(std::unique(allof(obj)), obj.end())
#define bit_subset(i, S) for(int i=S, zero_cnt=0;(zero_cnt+=i==S)<2;i=(i-1)&S)
#define bit_kpop(i, n, k) for(int i=(1<<k)-1,x_bit,y_bit;i<(1<<n);x_bit=(i&-i),y_bit=i+x_bit,i=(!i?(1<<n):((i&~y_bit)/x_bit>>1)|y_bit))
#define bit_kth(i, k) ((i >> k)&1)
#define bit_highest(i) (i?63-__builtin_clzll(i):-1)
#define bit_lowest(i) (i?__builtin_ctzll(i):-1)
#define sleepms(t) std::this_thread::sleep_for(std::chrono::milliseconds(t))
using ll = long long;
using ld = long double;
using ul = uint64_t;
using pi = std::pair<int, int>;
using pl = std::pair<ll, ll>;
using namespace std;

template<typename F, typename S>
std::ostream &operator<<(std::ostream &dest, const std::pair<F, S> &p){
  dest << p.first << ' ' << p.second;
  return dest;
}
template<typename T>
std::ostream &operator<<(std::ostream &dest, const std::vector<std::vector<T>> &v){
  int sz = v.size();
  if(sz==0) return dest;
  for(int i=0;i<sz;i++){
    int m = v[i].size();
    for(int j=0;j<m;j++) dest << v[i][j] << (i!=sz-1&&j==m-1?'\n':' ');
  }
  return dest;
}
template<typename T>
std::ostream &operator<<(std::ostream &dest, const std::vector<T> &v){
  int sz = v.size();
  if(sz==0) return dest;
  for(int i=0;i<sz-1;i++) dest << v[i] << ' ';
  dest << v[sz-1];
  return dest;
}
template<typename T, size_t sz>
std::ostream &operator<<(std::ostream &dest, const std::array<T, sz> &v){
  if(sz==0) return dest;
  for(int i=0;i<sz-1;i++) dest << v[i] << ' ';
  dest << v[sz-1];
  return dest;
}
template<typename T>
std::ostream &operator<<(std::ostream &dest, const std::set<T> &v){
  for(auto itr=v.begin();itr!=v.end();){
    dest << *itr;
    itr++;
    if(itr!=v.end()) dest << ' ';
  }
  return dest;
}
template<typename T, typename E>
std::ostream &operator<<(std::ostream &dest, const std::map<T, E> &v){
  for(auto itr=v.begin();itr!=v.end();){
    dest << '(' << itr->first << ", " << itr->second << ')';
    itr++;
    if(itr!=v.end()) dest << '\n';
  }
  return dest;
}
std::ostream &operator<<(std::ostream &dest, __int128_t value) {
  std::ostream::sentry s(dest);
  if (s) {
    __uint128_t tmp = value < 0 ? -value : value;
    char buffer[128];
    char *d = std::end(buffer);
    do {
      --d;
      *d = "0123456789"[tmp % 10];
      tmp /= 10;
    } while (tmp != 0);
    if (value < 0) {
      --d;
      *d = '-';
    }
    int len = std::end(buffer) - d;
    if (dest.rdbuf()->sputn(d, len) != len) {
      dest.setstate(std::ios_base::badbit);
    }
  }
  return dest;
}
template<typename T>
vector<T> make_vec(size_t sz, T val){return std::vector<T>(sz, val);}
template<typename T, typename... Tail>
auto make_vec(size_t sz, Tail ...tail){
  return std::vector<decltype(make_vec<T>(tail...))>(sz, make_vec<T>(tail...));
}
template<typename T>
vector<T> read_vec(size_t sz){
  std::vector<T> v(sz);
  for(int i=0;i<(int)sz;i++) std::cin >> v[i];
  return v;
}
template<typename T, typename... Tail>
auto read_vec(size_t sz, Tail ...tail){
  auto v = std::vector<decltype(read_vec<T>(tail...))>(sz);
  for(int i=0;i<(int)sz;i++) v[i] = read_vec<T>(tail...);
  return v;
}
long long max(long long a, int b){return std::max(a, (long long)b);}
long long max(int a, long long b){return std::max((long long)a, b);}
long long min(long long a, int b){return std::min(a, (long long)b);}
long long min(int a, long long b){return std::min((long long)a, b);}
long long modulo(long long a, long long m){a %= m; return a < 0 ? a + m : a;}

template<typename T>
struct safe_vector : std::vector<T>{
  using std::vector<T>::vector;
  T& operator [](size_t i){return this->at(i);}
};

template<typename T, int N>
struct safe_array : std::array<T, N>{
  using std::array<T, N>::array;
  T& operator [](size_t i){return this->at(i);}
};
ll ceil_div(ll x, ll y){
  assert(y > 0);
  return (x + (x > 0 ? y - 1 : 0)) / y;
}
ll floor_div(ll x, ll y){
  assert(y > 0);
  return (x + (x > 0 ? 0 : -y + 1)) / y;
}
void io_init(){
  std::cin.tie(nullptr);
  std::ios::sync_with_stdio(false);
}




template<typename Val>
struct accumulate1d{
  std::vector<Val> sum;
  accumulate1d(){}
  accumulate1d(const std::vector<Val> &v): sum(v){
    for(int i = 1; i < v.size(); i++) sum[i] = sum[i - 1] + v[i];
  }
  // [0, r)の和, 範囲外の部分は全て単位元
  Val query(int r){
    r = std::min(r, (int)sum.size());
    if(r <= 0) return 0;
    return sum[r - 1];
  }
  // [l, r)の和, 範囲外の部分は全て単位元
  Val query(int l, int r){
    l = std::max(l, 0);
    r = std::min(r, (int)sum.size());
    if(r <= l) return 0;
    return (l == 0 ? sum[r - 1] : (sum[r - 1] - sum[l - 1]));
  }
  void push_back(Val x){
    Val y = (sum.empty() ? 0 : sum.back());
    sum.push_back(y + x);
  }
  void pop_back(){
    assert(!sum.empty());
    sum.pop_back();
  }
  // [0, k]がx以上になる最小インデックス, ない場合はn
  int lower_bound(Val x){
    return std::lower_bound(sum.begin(), sum.end(), x) - sum.begin();
  }
  // [0, k]がxより大きくなる最小インデックス, ない場合はn
  int upper_bound(Val x){
    return std::upper_bound(sum.begin(), sum.end(), x) - sum.begin();
  }
};


// F := 普通の区間クエリ
// G := 合成
template<typename T>
T cicle_range_query(long long N, long long l, long long r, 
  std::function<T(long long, long long)> F, std::function<T(T, T)> G){
  long long d = l / N;
  l -= d * N;
  r -= d * N;
  if(r <= N) return F(l, r);
  T res = F(l, N);
  r -= N;
  d = r / N;
  r -= d * N;
  // pow
  if(d){
    T a, b = F(0, N);
    bool first = true;
    while(d){
      if(d & 1){
        if(first){
          a = b;
          first = false;
        }else{
          a = G(a, b);
        }
      }
      b = G(b, b);
      d >>= 1;
    }
    res = G(res, a);
  }
  if(r) res = G(res, F(0, r));
  return res;
}

int main(){
  io_init();
  int n, q;
  std::cin >> n >> q;
  string s;
  std::cin >> s;
  // x = h, y = wなら終了
  // x = hなら右
  // y = wなら下
  // Siの通りに移動してi++

  vector<ll> _R(n, 0), _D(n, 0);
  range(i, 0, n){
    if(s[i] == 'R') _R[i]++;
    else _D[i]++;
  }
  accumulate1d<ll> R(_R), D(_D);
  auto sum = [](ll a, ll b) -> ll {
    return a + b;
  };
  auto queryD = [&](ll a, ll b) -> ll {return D.query(a, b);};
  auto queryR = [&](ll a, ll b) -> ll {return R.query(a, b);};
  auto getD = [&](ll a, ll b) -> ll {
    return cicle_range_query<ll>(n, a, b, queryD, sum);
  };
  auto getR = [&](ll a, ll b) -> ll {
    return cicle_range_query<ll>(n, a, b, queryR, sum);
  };

  range(i, 0, q){
    int h, w, p;
    std::cin >> h >> w >> p;
    ll l = 0, r = 2000000000;
    while(r - l > 1){
      ll m = (l + r) / 2;
      // Sp.....S{p+m-1}にDがh個以上またはRがw個以上あるか
      if(getD(p, p + m) >= h || getR(p, p + m) >= w){
        r = m;
      }else{
        l = m;
      }
    }
    std::cout << (p + r) % n << '\n';
  }  
}