# -*- coding: utf-8 -*-
# @Time    : 2019/9/3 16:16
# @Author  : DrMa
of = (1 << 31) - 1
print(of)
dfe9970745adad3bdf8e888a2ed95c1b105f2266
<mask token>

<mask token>
print(of)

of = (1 << 31) - 1
print(of)

# -*- coding: utf-8 -*-
# @Time    : 2019/9/3 16:16
# @Author  : DrMa
of = (1 << 31) - 1
print(of)