ID: 2977

Type: Default

1000ms

256MiB

Difficulty: 3

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鸡兔同笼

Background

Description

小明和妈妈看到马路上一共开过4辆轿车，6辆摩托车和5辆三轮车，一共有多少只轮子？

Format

Input

Output

Samples

Limitation

1s, 1024KiB for each test case.

In following contests:

鸡兔同笼（不同的题型）