Harmonic numbers (1)

Write a program that reads a number $n$ and prints the $n$-th harmonic number, defined as $H_n = 1/1 + 1/2 + \cdots + 1/n$.

Input

Input consists of a natural number $n$.

Output

Print $H_n$ with 4 digits after the decimal point.

Problem information

Author: Unknown
Translator: Salvador Roura

Generation: 2026-01-25T11:34:14.804Z

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