x = [3, 5, 17, 257, 65537]
a = int(input())
s = 0

for i in range(30):
    for j in range(32):
        m = 1 << i  
        if j & 1:
            m *= x[0]
        if j & 2:
            m *= x[1]
        if j & 4:
            m *= x[2]
        if j & 8:
            m *= x[3]
        if j & 16:
            m *= x[4]
        if m > 2 and m <= a:
            s += 1

print(s)