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

if a == c:
    print('No')
elif b < a:
    if (a-b) <= (n-c):
        print('Yes')
    else:
        print('No')
elif a < b:
    if (n-c) <= (b-a):
        print('Yes')
    else:
        print('No')