"""

https://yukicoder.me/problems/no/1829

"""

N = int(input())

a,b,c = map(int,input().split())

a -= 1
b -= 1
c -= 1

C = c + N

if a == c:
    print ("No")
elif C - a < N:
    if a < b:
        print ("No")
    else:
        print ("Yes")
else:
    if b < a:
        print ("No")
    else:
        print ("Yes")