class Input {
static IEnumerator<string> enumerator = new string[] { }.AsEnumerable().GetEnumerator();
public static string Line => Console.ReadLine();
public static string[] StrArr => Line.Split(' ');
public static int NextInt => int.Parse(NextWord());
public static long NextLong => long.Parse(NextWord());
public static List<int> IntList => StrArr.Select(int.Parse).ToList();
public static List<long> LongList => StrArr.Select(long.Parse).ToList();
public static string NextWord() {
while (!enumerator.MoveNext()) {
enumerator = StrArr.AsEnumerable().GetEnumerator();
}
return enumerator.Current;
}
}