题目地址：

https://acs.jxnu.edu.cn/problem/NOIOPJENGLISH10

Chickens and Rabbits

鸡和兔子

描述：

In the yard were C chickens and R rabbits. Each chicken has one head and two legs. Each rabbit has one head and four legs. There are total 27 heads and 86 legs in the yard. Calculate C and R.

在院子里有C只鸡和R只兔子。每只鸡有一个头和两条腿。每只兔子有一个头和四条腿。这里一共有27个头和86条腿。计算C和R。

输入：

N/A

输出：

Two integers C and R.

两个整数C和R。

样例输入：

N/A

样例输出：

not provided

不提供