#include <bits/stdc++.h> 
using namespace std;
using ll =long long;
#define all(v) v.begin(),v.end()
 #define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)

ll INF=2e18;


int main() {
    ios::sync_with_stdio(false);
  cin.tie(0);
  
ll N,Q;cin>>N>>Q;
string S;cin>>S;

vector<ll> x(N+1),y(N+1);

for(ll i=0;i<N;i++) {
  x[i+1]=x[i];
  y[i+1]=y[i];
  if(S[i]=='D') x[i+1]++;
  else y[i+1]++;
}






for(ll i=0;i<Q;i++) {
  ll H,W,P;cin>>H>>W>>P;

  //何回の移動？

  ll s=0;
  ll g=1000000000000000;

  while(s<g) {
    ll X=0,Y=0;

    //<=の最小

    ll k=(s+g)/2;
    ll K=k;


    ll noko=N-P;

    if(noko<=k) {
      X+=x[N]-x[P];
      Y+=y[N]-y[P];
      k-=N-P;
    }
    else {
      X+=x[P+k]-x[P];
      Y+=y[P+k]-y[P];
      k=0;
    }
    
    ll count=k/N;
    k%=N;
    X+=x[N]*count;
    Y+=y[N]*count;

    if(k>0) {
      X+=x[k];
      Y+=y[k];
    k=0;
    }
  
  if(X>=H||Y>=W) {
    g=K;
  }

  else s=K+1;
  }


  ll k=s;
  ll noko=N-P;
  ll X=0,Y=0;



  if(noko<=k) {
      X+=x[N]-x[P];
      Y+=y[N]-y[P];
      k-=N-P;
    }

    else {
      X+=x[P+k]-x[P];
      Y+=y[P+k]-y[P];
      k=0;
    }
    
    ll count=k/N;
    k%=N;
    X+=x[N]*count;
    Y+=y[N]*count;

    if(k>0) {
      X+=x[k];
      Y+=y[k];
    k=0;
    }

    


  

    cout<<(P+s)%N<<endl;
}


}