Intermediate · Dictionaries · 134 of 264

Letter chart

Count the letters in a line (ignore capitals, spaces and punctuation) and draw a bar of stars for each letter, in alphabetical order.

Input: one line. Output: lines like a: ***

Examples

Input

Hello World

Output

d: *
e: *
h: *
l: ***
o: **
r: *
w: *

Input

banana

Output

a: ***
b: *
n: **

Input

abc cba!

Output

a: **
b: **
c: **

One more test checks other inputs when you press Check.

Stuck? The idea behind dictionaries

A dictionary links keys to values, like words to meanings: ages["Ann"] = 12. Looking up a key is fast, however big it is.

.get(key, 0) gives a default when the key isn't there; looping over a dictionary gives its keys, .items() gives keys and values together.

counts = {}
for word in input().split():
    counts[word] = counts.get(word, 0) + 1
for word, n in counts.items():
    print(word, n)

Watch for: Reading a key that isn't there stops the program with a KeyError: check with in, or use .get().