Average word length in a string

Java Easy streams

Task «Average word length in a string»

Write a program that reads a string of text containing words separated by spaces. Using the Stream API, find the average length of words in the string (number of letters). Output the result rounded to two decimal places.

Input Format

One line containing words of Latin letters separated by spaces. The length of the string does not exceed 1000 characters.

Output Format

One number — the average word length, rounded to two decimal places.

Examples

Example 1

INPUT

hello world

OUTPUT

5.00

Example 2

INPUT

python is great

OUTPUT

4.33

main.java