Ecology

Time limit1sMemory limit256 MB

Summary

Count how many times each tree species line appears, then print each species in lexicographic order with its share of the total, rounded to four decimals.

Level: Easy3 of 10
Topics: Hash map, String, Sorting
Solved: No attempts yet

Problem

In ecology, measuring the distribution of trees is important. Given a list of trees found across the United States, write a program that computes what percentage of all the trees each species accounts for.

Input

The input consists of several lines, with one tree species name per line. No species name is longer than 30 characters. There are at most 10,000 distinct species and at most 1,000,000 trees. A species name may contain spaces, so treat each entire line as a single species name.

Output

Print the name of every species that appears in the input in alphabetical (lexicographic) order. After each name, print the percentage of the total number of trees that the species represents, rounded to four decimal places. The percentage is computed as (number of trees of that species) × 100 ÷ (total number of trees), and the name and value are separated by a single space.

Hint

The input may contain only uppercase and lowercase English letters, space characters, digits, and special characters.

Examples2

Example 1

Input

Red Alder
Ash
Aspen
Basswood
Ash
Beech
Yellow Birch
Ash
Cherry
Cottonwood
Ash
Cypress
Red Elm
Gum
Hackberry
White Oak
Hickory
Pecan
Hard Maple
White Oak
Soft Maple
Red Oak
Red Oak
White Oak
Poplan
Sassafras
Sycamore
Black Walnut
Willow

Expected output

Ash 13.7931
Aspen 3.4483
Basswood 3.4483
Beech 3.4483
Black Walnut 3.4483
Cherry 3.4483
Cottonwood 3.4483
Cypress 3.4483
Gum 3.4483
Hackberry 3.4483
Hard Maple 3.4483
Hickory 3.4483
Pecan 3.4483
Poplan 3.4483
Red Alder 3.4483
Red Elm 3.4483
Red Oak 6.8966
Sassafras 3.4483
Soft Maple 3.4483
Sycamore 3.4483
White Oak 10.3448
Willow 3.4483
Yellow Birch 3.4483

Example 2
Input
```
Oak
```
Expected output
```
Oak 100.0000
```