#include<bits/stdc++.h>
using namespace std;
int n,t,k,a[100001],b,s;
int main(){
    scanf("%d",&n);
    while(n--){
        scanf("%d%d",&t,&k);
        while(k--){scanf("%d",&b); a[b]=1;}
        if(t>86400) continue;
        s=0;
        for(int i=1;i<100001;i++) s+=a[i];
        printf("%d\n",s);
    }
    return 0;
}