Hard Calculation

题号：NC220447
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

Hooray! It is the first time that Kunming holds an ICPC regional contest. Suppose that everything goes on well and the Kunming Regional Contest is held each year. In which year will the $x$ -th Kunming Regional Contest be held?

输入描述:

The first and only line of input contains a single integer .

输出描述:

Output a single integer, denoting the year when the -th Kunming Regional Contest will be held.

示例1

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输出

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示例2

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输出

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备注:

Note that it is the year 2021 right now.