using System;
public class Program
{
public static void Main()
string input = Console.ReadLine();
char[] charInput = input.ToCharArray();
for (int i = 0; i < charInput.Length; i++)
for (int j = 0; j <= i; j++)
/*if(j == 0){
//yang ini
string upper = charInput[i].ToUpper();
Console.Write(upper);
}else{*/
Console.Write(charInput[i]);
//}
}
Console.Write("-");