# Solution for the letter frequency problem
#
# Marco Della Vedova - marco.dellavedova@unicatt.it

import sys

# Initialization of the dictionary with the counts
counts = {}

for line in sys.stdin:
    for letter in line.lower():
        if letter.isalpha():  # <- consider alphabetic character only
            if letter not in counts:
                counts[letter] = 0
            counts[letter] += 1
print(counts)