using System;
using System.Collections.Generic;
using System.Linq;

namespace Crossroads
{
    class Crossroads
    {
        static void Main()
        {
            int sec = int.Parse(Console.ReadLine());
            int bonus = int.Parse(Console.ReadLine());

            string line = string.Empty;

            Queue<string> queue = new Queue<string>();

            int countPassed = 0;

            while ((line = Console.ReadLine()) != "END")
            {
                if (line == "green")
                {
                    int temp = sec;

                    while (queue.Any())
                    {
                        var carName = queue.Dequeue();
                        if (temp - carName.Length >= 0)
                        {
                            temp -= carName.Length;
                            countPassed++;
                            if (queue.Count == 0 || temp == 0)
                            {
                                break;
                            }
                        }
                        else if ((temp + bonus) - carName.Length >= 0)
                        {
                            countPassed++;
                            break;
                        }
                        else
                        {
                            Console.WriteLine("A crash happened!");
                            Console.WriteLine($"{carName} was hit at {carName.Substring(temp + bonus, 1)}.");
                            return;
                        }
                    }
                }
                else
                {
                    queue.Enqueue(line);
                }
            }
            Console.WriteLine("Everyone is safe.");
            Console.WriteLine($"{countPassed} total cars passed the crossroads.");
        }
    }
}