题号：NC236493
时间限制：C/C++/Rust/Pascal 1秒，其他语言2秒
空间限制：C/C++/Rust/Pascal 256 M，其他语言512 M
64bit IO Format: %lld
时间限制：C/C++/Rust/Pascal 1秒，其他语言2秒
空间限制：C/C++/Rust/Pascal 256 M，其他语言512 M
64bit IO Format: %lld
题目描述
A sequinary numeral is a sequence of digits:
where 
is 
or 
and the others are 
, or .
It represents the rational number: %20%2B%20d_2%20*(%203%2F2)%5E%202%20%2B%20...%20%2B%20d_n*(%203%2F2)%5E%20n)
Write a program which takes a sequinary numeral as input and returns the number it represents as a proper fraction.
输入描述:
The single line of input contains a sequinary numeral of no more thandigits.
输出描述:
Output consists of a single line.If the result is an integer, the output is the decimal integer. Otherwise, the output isa single space and
where
and
are decimal integers where
and
).