Vasya and the Cube

A standard die has faces numbered with dots from 1 to 6. Vasya rolls this die repeatedly until the cumulative sum of the rolls exceeds a given number n.

Vasya is curious to know: “What is the most likely sum that results from this process?” Your task is to write a program that determines this sum.

Input

The input consists of a single line containing the number n (5 < n ≤ 2147483647).

Output

Output a single number, which is the answer to Vasya's question.

Examples