using System; using System.IO; using System.Linq; using System.Text; using System.Collections.Generic; using System.Diagnostics; using System.Numerics; using Enu = System.Linq.Enumerable; class Program { public void Solve() { int T = Reader.Int(); for (int ti = 0; ti < T; ti++) { long N = Reader.Int(), M = Reader.Long(); if (N >= M) Console.WriteLine(0); else if (N <= 100000) Console.WriteLine(BruteForce(N, M)); else if (IsPrime(M)) { long ans = M - 1; for (long i = M - 1; i > N; i--) ans = ans * ModPower(i, M - 2, M) % M; Console.WriteLine(ans); } else { if (N >= M / 2) Console.WriteLine(0); else Console.WriteLine(BruteForce(N, M)); } } } private long BruteForce(long N, long M) { long res = 1 % M; for (int i = 1; i <= N; i++) res = res * i % M; return res; } static bool IsPrime(long n) { if (n <= 1) return false; for (long i = 2; i * i <= n; i++) if (n % i == 0) return false; return true; } static long ModPower(long x, long n, long mod) // x ^ n { long res = 1; while (n > 0) { if ((n & 1) == 1) { res = (res * x) % mod; } x = (x * x) % mod; n >>= 1; } return res; } } class Entry { static void Main() { new Program().Solve(); } } class Reader { private static TextReader reader = Console.In; private static readonly char[] separator = { ' ' }; private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries; private static string[] A = new string[0]; private static int i; private static void Init() { A = new string[0]; } public static void Set(TextReader r) { reader = r; Init(); } public static void Set(string file) { reader = new StreamReader(file); Init(); } public static bool HasNext() { return CheckNext(); } public static string String() { return Next(); } public static int Int() { return int.Parse(Next()); } public static long Long() { return long.Parse(Next()); } public static double Double() { return double.Parse(Next()); } public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); } public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); } public static string Line() { return reader.ReadLine().Trim(); } private static string[] Split(string s) { return s.Split(separator, op); } private static string Next() { CheckNext(); return A[i++]; } private static bool CheckNext() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return CheckNext(); A = Split(line); i = 0; return true; } }