import sys, time, random
from collections import deque, Counter, defaultdict
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 61 - 1
mod = 998244353
class Cumsum1d():
    def __init__(self, A):
        self.n = len(A)
        self.Suma = [0] * (self.n + 1)
        for i in range(self.n):
            self.Suma[i + 1] += self.Suma[i] + A[i]

    def query(self, l, r):
        #0-indexed
        return self.Suma[r] - self.Suma[l]

    def get(self, i):
        return self.Suma[i + 1] - self.Suma[i]

    def __getitem__(self, p):
        if isinstance(p, int):
            return self.get(p)
        else:
            return self.query(p.start, p.stop)
n, q = mi()
s = input()

R = [0] * n
D = [0] * n
for i in range(n):
    if s[i] == 'R':
        R[i] = 1
    else:
        D[i] = 1
R = Cumsum1d(R)
D = Cumsum1d(D)
def countr(p, d):
    #p項目からd項にわたるrの個数
    ret = 0
    if n - p <= d:
        ret += R.query(p, n)
        d -= n - p
    ret += (d // n) * R.query(0, n)
    ret += R.query(0, d % n)
    return ret
def countd(p, d):
    #p項目からd項にわたるdの個数
    ret = 0
    if n - p <= d:
        ret += D.query(p, n)
        d -= n - p
    ret += (d // n) * D.query(0, n)
    ret += D.query(0, d % n)
    return ret

for i in range(q):
    h, w, p = mi()
    ok = h + w
    ng = 0
    while abs(ok - ng) > 1:
        mid = (ok + ng) // 2
        r = countr(p, mid)
        d = countd(p, mid)
        if d >= h or r >= w:
            ok = mid
        else:
            ng = mid
    print((p + ok) % n)