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

namespace _06.Challenge_The_Wedding
{
    class Program
    {
        static void Main(string[] args)
        {
            //1. Read Input
            int menCount = int.Parse(Console.ReadLine());
            int womenCount = int.Parse(Console.ReadLine());
            int maxTables = int.Parse(Console.ReadLine());

            //2. Manipulate Data
            for (int i = 1; i <= menCount; i++)
            {
                for (int j = 1; j <= womenCount; j++)
                {

                    maxTables--;
                    if (maxTables >= 0)
                    {
                        Console.Write($"({i} <-> {j}) ");
                    }
                    else
                    {
                        break;
                    }

                }
            }
        }
    }
}