#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int INF = 1e9 + 10;
const ll INFL = 4e18;

int main() {
    int N, Q;
    cin >> N >> Q;
    string S;
    cin >> S;

    vector<vector<int>> cnt(N + 1, vector<int>(2, 0));
    for (int i = 0; i < N; i++) {
        cnt[i + 1][0] = cnt[i][0];
        cnt[i + 1][1] = cnt[i][1];
        if (S[i] == 'D') {
            cnt[i + 1][0]++;
        } else {
            cnt[i + 1][1]++;
        }
    }

    while (Q--) {
        ll H, W, P;
        cin >> H >> W >> P;

        ll lo = 0, hi = INF;
        while (hi - lo > 1) {
            ll mid = (lo + hi) / 2;

            ll cycle = mid / N;
            ll rem = (P + mid) % N;

            ll nx = 0, ny = 0;
            nx += cnt[N][0] * cycle;
            ny += cnt[N][1] * cycle;

            if (P <= rem) {
                nx += cnt[rem][0] - cnt[P][0];
                ny += cnt[rem][1] - cnt[P][1];
            } else {
                nx += cnt[N][0] - cnt[P][0] + cnt[rem][0];
                ny += cnt[N][1] - cnt[P][1] + cnt[rem][1];
            }

            if (nx < H && ny < W) {
                lo = mid;
            } else {
                hi = mid;
            }
        }

        cout << (P + hi) % N << '\n';
    }
}