using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace yukicoderTest { class Program { static void Main(string[] args) { string input = Console.ReadLine(); string input2 = Console.ReadLine(); string[] vote = input2.Split(' '); int[] num = new int[vote.Length]; int line = 0; int cnt = 0; for(int i=0;i<vote.Length;i++) { num[i] = int.Parse(vote[i]); line = line + num[i]; } for(int i=0;i<num.Length;i++) { if(num[i]<=line/10) { cnt++; } } Console.WriteLine(cnt * 30); } } }