import std.stdio;
import std.array;
import std.string;
import std.algorithm;
import std.math;
import std.range;
import std.conv;
import std.typecons;

// solve =============
T solve(T)(T[] xs, T acc = 0){
  xs.sort.reverse;
  if( xs[0..3].any!("a==0") ) return acc; else --xs[0..3];
  return solve(xs, acc + 1);
}

// main ===============
void main(){
  readln;
  foreach(line; stdin.byLine){
    if(line.empty) break;
    auto ls = readln.chomp.split(" ").map!(to!int).array.sort;
    auto groupLs = ls.group.map!("a[1]").array;  //uint
    writeln( groupLs.length >= 3 ? solve(groupLs) : 0 );
  }
}