I can't understand why my program doesn't work.
package com.codegym.task.task04.task0413;
/*
Day of the week
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String num = bufferedReader.readLine();
int n = Integer.parseInt(num);
if (n == 1) {
System.out.println("Monday");
}
if (n == 2) {
System.out.println("Tuesday");
}
if (n == 3) {
System.out.println("Wednesday");
}
if (n == 4) {
System.out.println("Thursday");
}
if (n == 5) {
System.out.println("Friday");
}
if (n == 6) {
System.out.println("Saturday");
}
if (n == 7) {
System.out.println("Sunday");
}
if (n < 1 || n > 7) {
System.out.println("No such day of the week.");
}
}
}