#include<stdio.h>
int main()
{
	int n;
	scanf("%d", &n);
	int a, b, c;
	scanf("%d %d %d", &a, &b, &c);
	int d;
	if (a < b)
	{
		d = n - a;
		d += c - 1;
	}
	else
	{
		d = a - 1;
		d += n - c;
	}
	if (d < n)
		printf("No\n");
	else
		printf("Yes\n");
	return 0;
}