import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

public class Main {
	public static void main(String[] args) {
		// Test
		System.out.println(changeDateStringFormat("10-Mar-2015"));
	}

	static String changeDateStringFormat(String input) {
		DateTimeFormatter dtfInput = DateTimeFormatter.ofPattern("d-MMM-u", Locale.ENGLISH);
		DateTimeFormatter dtfOutput = DateTimeFormatter.ofPattern("MMM-dd-uuuu", Locale.ENGLISH);

		LocalDate date = LocalDate.parse(input, dtfInput);
		
		return date.format(dtfOutput);
	}
}