ID: 2975

Type: Default

1000ms

256MiB

Difficulty: 5

Uploaded By:

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鸡兔同笼

Background

Description

一只笼子里关着8只鸡和5只兔，它们一共有几个头和几条腿？

Format

Input

Output

Samples

13
36

Limitation

1s, 1024KiB for each test case.

In following contests:

鸡兔同笼（不同的题型）