#!/usr/bin/env python
# coding: utf-8
f = open('text.txt', 'r', encoding='utf-8')
s = f.read()
s = s.split()
struct = dict()

alp = set()
for i in range(ord('a'), ord('z') + 1):
    alp.add(chr(i))

for i in range(ord('A'), ord('Z') + 1):
    alp.add(chr(i))

alp.add('.')
alp.add('?')
alp.add('!')

for i in range(ord('а'), ord('я')):
    alp.add(chr(i))

for i in range(ord('А'), ord('Я')):
    alp.add(chr(i))

n = len(s)
words = []
for i in range(n):
    f = True
    for j in range(len(s[i])):
        if s[i][j] not in alp:
            words += s[i].split(s[i][j])
            f = False
    if f:
        words += [s[i]]

n = len(words)

for i in range(n):
    if words[i] != "\n" and words[i] != "":
        struct[words[i]] = dict()

for i in range(1, n):
    if words[i] == "" or words[i - 1] == "" or words[i] == "\n" or words[i - 1] == "\n":
        continue
    if words[i] not in struct[words[i - 1]].keys():
        struct[words[i - 1]][words[i]] = 1
    else:
        struct[words[i - 1]][words[i]] += 1

count = dict()

for i in struct.keys():
    count[i] = sum(struct[i].values())
    print(i, ', ', count[i], ': ', struct[i], sep='')