using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using static System.Math;

namespace CSharpSpiral {
	class Program {
		static void Main(string[] args) {
			var sw = new StreamWriter(Console.OpenStandardOutput()) {
				AutoFlush=
#if DEBUG
			true
#else
			false
#endif
			};
			Console.SetOut(sw);
			new Program().Solve(new ConsoleInput(
#if DEBUG
			new StreamReader("../../../inputData.txt")
#else
			Console.In
#endif
			, ' '));
			Console.Out.Flush();
		}
		public void Solve(ConsoleInput cin) {
			var Q = cin.ReadInt;
			for(int j = 0; j<Q; j++) {
				var d = cin.ReadIntArray(8);
				var s1 = new Vector2D(d[0], d[1])-new Vector2D(d[2], d[3]);
				var s2 = new Vector2D(d[4], d[5])-new Vector2D(d[6], d[7]);
				if(Vector2D.outer(s1, s2)==0) Console.WriteLine(2);
				else if(Vector2D.inner(s1, s2)==0) Console.WriteLine(1);
				else Console.WriteLine(0);
			}
		}
		public struct Vector2D {
			public decimal x { get; set; }
			public decimal y { get; set; }
			public Vector2D(decimal xx, decimal yy) { x=xx; y=yy; }
			public static Vector2D operator -(Vector2D a, Vector2D b) => new Vector2D(a.x-b.x, a.y-b.y);
			public static Vector2D operator +(Vector2D a, Vector2D b) => new Vector2D(a.x+b.x, a.y+b.y);
			public static Vector2D operator *(Vector2D a, decimal k) => new Vector2D(a.x*k, a.y*k);
			public static decimal outer(Vector2D a, Vector2D b) => a.x*b.y-b.x*a.y;
			public static decimal inner(Vector2D a, Vector2D b) => a.x*b.x+a.y*b.y;
			public decimal Abs2() => x*x+y*y;
			public override string ToString() => $"({x}, {y})";
		}
	}
	static class ExtendClass {
		public static void Swap<T>(this T[] A, int x, int y) {
			var tmp = A[x];
			A[x]=A[y];
			A[y]=tmp;
		}
		public static string Join<T>(this IEnumerable<T> X, string separator = " ") => string.Join(separator, X);
		public static IEnumerable<int> Indices<T>(this T[] X) => Enumerable.Range(0, X.Length);
		public static IEnumerable<int> Indices<T>(this T[,] X, int dim)
			=> Enumerable.Range(0, X.GetLength(dim));
		public static string Join<T>(this T[,] X, string separatorD2 = ",", string separatorD1 = "\n")
			=> X.Indices(0).Select(
				i => X.Indices(1).Select(j => X[i, j]).Join(separatorD2)
			).Join(separatorD1);
	}
	class ConsoleInput {
		private readonly TextReader _stream;
		private readonly char _separator = ' ';
		private readonly Queue<string> inputStream;
		public ConsoleInput(TextReader stream, char separator = ' ') {
			this._separator=separator;
			this._stream=stream;
			inputStream=new Queue<string>();
		}
		public string Read {
			get {
				if(inputStream.Count!=0) return inputStream.Dequeue();
				string[] tmp = _stream.ReadLine().Split(_separator);
				for(int i = 0; i<tmp.Length; ++i)
					inputStream.Enqueue(tmp[i]);
				return inputStream.Dequeue();
			}
		}
		public string ReadLine { get { return _stream.ReadLine(); } }
		public int ReadInt { get { return int.Parse(Read); } }
		public long ReadLong { get { return long.Parse(Read); } }
		public double ReadDouble { get { return double.Parse(Read); } }
		public string[] ReadStrArray(long N) {
			var ret = new string[N];
			for(long i = 0; i<N; ++i)
				ret[i]=Read;
			return ret;
		}
		public int[] ReadIntArray(long N) { var ret = new int[N]; for(long i = 0; i<N; ++i) ret[i]=ReadInt; return ret; }
		public long[] ReadLongArray(long N) { var ret = new long[N]; for(long i = 0; i<N; ++i) ret[i]=ReadLong; return ret; }
		public double[] ReadDoubleArray(long N) { var ret = new double[N]; for(long i = 0; i<N; ++i) ret[i]=ReadDouble; return ret; }
		public bool isEOF {
			get { return _stream.Peek()==-1; }
		}
	}
}


Measured memory_bytes: 18412