using System.Numerics; public class Program { public static void Main() { //BigInteger num = BigInteger.Parse(Console.ReadLine() ?? string.Empty); //int num = int.Parse(Console.ReadLine() ?? string.Empty); //string[] moji = (Console.ReadLine() ?? string.Empty).Trim().Split(' '); string moji = Console.ReadLine() ?? string.Empty; string str = Console.ReadLine() ?? string.Empty; int index = moji.IndexOf(str); int count = 0; while(index >= 0) { count++; moji = moji.Substring(index+str.Length); index = moji.IndexOf(str); } Console.WriteLine(count); } }