Submission #162411

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Source Code Expand

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

class Program {

	static void Main(string[] args) {

		char[] cs = new char[] { ' ', ',' };
		string[] rl = Console.ReadLine().Split(cs);
		long sta = int.Parse(rl[0]);
		long end = int.Parse(rl[1]);
		long count = 0;
		for (long i = sta; i <= end; i++) {
			string str = i.ToString();
			for (int j = 0; j < str.Length; j++) {

				if (str[j] == '4' || str[j] == '9') {
					count++;
					break;
				}
			}
		}



		Console.WriteLine(count);
		return;
	}


}

Submission Info

Judge Result