def f(x):
 while"1'"in`map(bin,x)`:x.pop()

for x in [14, 42, 2324, 97090, 4080622, 171480372], [42, 14, 42, 2324], [7,14,42], [], [171480372, 13, 14, 42], [42, 14, 42, 43, 41, 4080622, 171480372]:
    f(x);print x