import java.util.*; import java.text.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(System.in); String s = sc.next(); final DateFormat DF = new SimpleDateFormat("yyyy/MM/dd"); Calendar cal = Calendar.getInstance(); cal.setTime(DF.parse(s)); cal.add(Calendar.DATE, 2); System.out.println(DF.format(cal.getTime())); } }