#include "stdio.h"
#include "string.h"
struct car
{
	int length;
	char s[6];
};
int main()
{
	int l,m,i,count,k,curlen,n,j;
	scanf("%d",&n);
	for(j=1;j<=n;j++)
	{
	scanf("%d%d",&l,&m);
	struct car *a=new struct car[m];
	for(i=0;i<m;i++)
	{
		scanf("%d%s",&a[i].length,a[i].s);
	}
	count=0;
    if(strcmp(a[0].s,"right")==0)
		count=1;
    curlen=a[0].length;
	i=1;
	k=0;
	while(i<m)
	{
		if(strcmp(a[k].s,a[i].s)==0)
		{
			curlen=curlen+a[i].length;
			if(curlen>l*100)
			{
				count=count+2;
				curlen=a[i].length;
				k=i;
			}
		}
		else
		{
			count=count+1;
			k=i;
			curlen=a[i].length;
			
		}
		i++;
	}
	printf("%d\n",count+1);
	}
	return 0;
}