/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String value1 = "Bar Foo Bar: Foo8:16 Foo Bar Bar foo barz";
		String pattern1 = "\\d+:(\\d+)";
		Pattern ptrn = Pattern.compile(pattern1);
    	Matcher matcher = ptrn.matcher(value1);
    	if (matcher.find())
      		System.out.println(matcher.group(1));
    	else
    		System.out.println("false");
	}
}