import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String line = "Hello my 1st SSN : 11.333.56.3788 , 2nd SSN: 333-56-3789 , 3rd SSN 333.56.3780" ;
		Pattern p = Pattern.compile("(?<!\\d|\\d[.-])\\d{3}(?=([.-]))\\1\\d{2}\\1\\d{4}(?![.-]?\\d)");
		Matcher m = p.matcher(line);
		while(m.find()) {
		    System.out.println(m.group() );
		}
	}
}

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