import itertools
ost = ''
min = 4096
q = 65535
for i in range(min, q + 1):
    w = i
    ost=hex(i)
    if int(ost[2], 16) >= int(ost[3], 16) >= int(ost[4], 16) >= int(ost[5], 16):
        b=bin(int(ost[2:],16))
        if b.find("111111111")!=-1: