#include <iostream.h>
#include<fstream.h>
int n,t,i,j,a[3500],b[3500],c[3500],max[3500],ma; 
int main(){
    fstream f("cutii.in",ios::in);
    fstream g("cutii.out",ios::out);
    f>>n>>t;
    while(t>0)
    {
        for(i=1;i<=n;i++)
        f>>a[i]>>b[i]>>c[i];
        t--;
        ma=0;
        for(i=1;i<=n;i++)
        {
            max[i]=1;
            for(j=1;j<=n;j++)
            {
                
                if(a[i]<a[j])
                {
                    if(b[i]<b[j])
                    {
                        if(c[i]<c[j])
                        max[i]++;
                    }
                }
            }
            if(ma<max[i])
            ma=max[i];
        }
        g<<ma<<endl;
    }
            
   }