#include <bits/stdc++.h>

using namespace std;
void fast_io() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
}

int main() {
    fast_io();
    int n, q;
    cin >> n >> q;
    string s;
    cin >> s;
    vector<vector<long long>> cum(n + 1, vector<long long>(2));
    for (int i = 0; i < n; i++) {
        cum[i + 1][0] = cum[i][0] + (s[i] == 'D');
        cum[i + 1][1] = cum[i][1] + (s[i] == 'R');
    }
    auto get = [&](int l, int r, int c) {
        r -= l / n;
        l %= n;
        return cum[n][c] * (r / n - l / n) + cum[r % n][c] - cum[l][c];
    };
    for (; q--;) {
        long long h, w, p;
        cin >> h >> w >> p;
        long long ok = p - 1, ng = p + h + w;
        while (abs(ok - ng) > 1) {
            long long mid = (ok + ng) / 2;
            if (get(p, mid, 0) >= h || get(p, mid, 1) >= w) {
                ng = mid;
            } else {
                ok = mid;
            }
        }
        cout << ng % n << endl;
    }
}