Battles

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Battles
{
    class Battles
    {
        static void Main(string[] args)
        {
            int n1 = int.Parse(Console.ReadLine());
            int n2 = int.Parse(Console.ReadLine());
            int maxBattles = int.Parse(Console.ReadLine());
            int counter = 0;
            if (maxBattles == 0 || maxBattles<0)
            {

            }
            else
            {
                for (int i = 1; i <= n1; i++)
                {
                    for (int j = 1; j <= n2; j++)
                    {
                        if (counter >= maxBattles)
                        {
                            break;
                        }
                        Console.Write("({0} <-> {1}) ", i, j);
                        counter += 1;

                    }
                }

            }

        }
    }
}