#include<stdio.h>
char s[200005];
long long int x[400005], y[400005];
int main()
{
	long long int n, q;
	scanf("%lld %lld", &n, &q);
	scanf("%s", s);
	long long int i;
	x[0] = y[0] = 0;
	for (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 (i = 0; i < n; i++)
	{
		x[i + 1 + n] = x[i + n];
		y[i + 1 + n] = y[i + n];
		if (s[i] == 'D')
			x[i + 1 + n]++;
		else
			y[i + 1 + n]++;
	}
	long long int min, mid, max;
	long long int h, w, p;
	long long int f1, f2, f;
	for (i = 0; i < q; i++)
	{
		scanf("%lld %lld %lld", &h, &w, &p);
		if (x[n] > 0)
			f1 = (h - 1) / x[n];
		else
			f1 = 1e18;
		if (y[n] > 0)
			f2 = (w - 1) / y[n];
		else
			f2 = 1e18;
		if (f1 < f2)
			f = f1;
		else
			f = f2;
		h -= x[n] * f;
		w -= y[n] * f;
		if (h > x[n] && w > y[n])
		{
			h -= x[n];
			w -= y[n];
		}
		min = p;
		max = 2 * n;
		while (max - min > 1)
		{
			mid = (max + min) / 2;
			if (x[mid] - x[p] < h && y[mid] - y[p] < w)
				min = mid;
			else
				max = mid;
		}
		printf("%lld\n", max % n);
	}
	return 0;
}