#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;
int main(){
    int c,l,m,len[10005],p1,p2,s1,s2;
    char lr[10005][10];
    scanf("%d",&c);
    while(c--){
        scanf("%d%d",&l,&m);
        l *= 100;
        for(int i=0;i<m;i++){
            scanf("%d%s",&len[i],lr[i]);
        }
        p1 = p2 = 1;
        s1 = s2 = 0;
        for(int i=0;i<m;i++){
            if(strcmp(lr[i],"left")==0){
                s1 += len[i];
                if(s1>l){
                    s1 = 0;
                    p1++;
                    i--;
                }
            }
            else{
                s2 += len[i];
                if(s2>l){
                    s2 = 0;
                    p2++;
                    i--;
                }
            }
        }
        if(p1>p2)printf("%d\n",p1*2-1);
        else printf("%d\n",p2*2);
    }
    return 0;
}