Harmonic numbers (2)

Write a program that reads pairs of numbers n and m with n ≥ m, and for
each pair prints H_(n) − H_(m).

Input

Input consists of several pairs of natural numbers n and m such that
n ≥ m.

Output

For every pair, print H_(n) − H_(m) with 10 digits after the decimal
point.

Problem information

Author: Unknown
Translator: Salvador Roura

Generation: 2026-01-25T11:29:58.701Z

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