def pageCount(n, p):
    a = [x for x in range(n+1)]
    if len(a) % 2 !=0:
        a.append(0)
    num = 0
    pages = []
    while True:
        pages.append(a[num:num+2])
        num += 2
        if num > len(a) -1: break
    for i in pages:
        if p in i: page = i
    return min(pages.index(page), len(pages)-1 - pages.index(page))