using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

class CandidateCode {

    static void Main(String[] args) {

    //Write code here

    int noOfTeam =4;

    int[] noOfTeams = new int[]{3,10,8,19};

     // for(int i=0;i< noOfTeam;i++){

     //    noOfTeams[i] = int.Parse(Console.ReadLine());

     //   }

    for(int i=0;i<noOfTeams.Length;i++){

         Console.WriteLine(noOfTeams[i]-1);

        Console.WriteLine(calculate(noOfTeams[i]));

    }

    }

    //

    static int calculate(int teamSize){

        int extTeam=0,matches=0,teamCount=teamSize;

         while(teamCount > 1){

            extTeam = teamCount%2;

            matches+= (teamCount-extTeam)/2;

            teamCount = ((teamCount-extTeam)/2)+extTeam;

        }

    return matches;

​

    }

}

​