mirror of
https://github.com/tiennm99/codeforces.git
synced 2026-06-09 06:13:28 +00:00
27 lines
434 B
C#
27 lines
434 B
C#
using System;
|
|
|
|
namespace _520A
|
|
{
|
|
class Program
|
|
{
|
|
static string c = "abcdefghijklmnopqrstuvwxyz";
|
|
static bool Check(string s)
|
|
{
|
|
for (int i = 0; i < 26; i++)
|
|
{
|
|
if (s.IndexOf(c[i]) == -1)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
static void Main(string[] args)
|
|
{
|
|
string s = Console.ReadLine();
|
|
s = Console.ReadLine().ToLower();
|
|
Console.WriteLine("{0}", Check(s) ? "YES" : "NO");
|
|
}
|
|
}
|
|
}
|