n, k = map(int, input().split())
a,b,c = map(int, input().split())
s = n
s = min(s, abs(k-a))
s = min(s, abs(k-b))
s = min(s, abs(k-c))
s = min(s, abs(k+n-a))
s = min(s, abs(k+n-b))
s = min(s, abs(k+n-c))
print(s)