import java.util.Scanner;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 注意 hasNext 和 hasNextLine 的区别
int a = in.nextInt();
switch(a) {
case 7:
System.out.println(1);
break;
default:
System.out.println(a+1);
}
}
} public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int d = in.nextInt();
if(d<7){
System.out.println(d+1);
}else if(d==7){
System.out.println(1);
}
}
}