import java.util.Scanner;

class repchar
{
	public static void main(String args[])
	{
		Scanner input = new Scanner(System.in);
		
		System.out.println("Pleas enter a string.");
		String str = input.nextLine();
		int sLength = str.length();
		boolean match = false;
		int i = 0;
		while(!match && i < sLength)
		{
			char chkChar = str.charAt(i);
			int j = i + 1;
			while(!match && j < sLength)
			{
				if(str.charAt(j) == chkChar)
					match = true;
				j++;
			}
			i++;
		}
		System.out.println(match);
	}
}