#!/usr/bin/env python3


ifile = './gibberish.txt'

with open(ifile) as f: content = f.read()

lines = content.split('\n')
words = [ w for l in lines for w in l.split() if w ]

words_uniq = {}
top_word = None
longest_line = None
max_uniq_symbols_line = None
max_uniq_symbols_line_number = 0
max_uniq_words_line = None
max_uniq_words_line_number = 0
palindrome_words = []

lnum = 0

for l in lines:
    lnum += 1
    for w in l.split():
        if not w:
            continue
        if w in words_uniq:
            words_uniq[w] += 1
        else:
            words_uniq[w] = 1
        if top_word is None:
            top_word = w
        else:
            if words_uniq[w] > words_uniq[top_word]:
                top_word = w
        if w == w[::-1] and w not in palindrome_words:
            palindrome_words.append(w)
    if longest_line is None:
        longest_line = l
    else:
        if len(l) > len(longest_line):
            longest_line = l
    if max_uniq_symbols_line is None:
        max_uniq_symbols_line = l
        max_uniq_symbols_line_number = lnum
    else:
        if len(set(l)) > len(set(max_uniq_symbols_line)):
            max_uniq_symbols_line = l
            max_uniq_symbols_line_number = lnum
    if max_uniq_words_line is None:
        max_uniq_words_line = l
        max_uniq_words_line_number = lnum
    else:
        if len(set(l.split())) > len(set(max_uniq_words_line.split())):
            max_uniq_words_line = l
            max_uniq_words_line_number = lnum

palindrome_words_count = len(palindrome_words)

print(
    """
    1. {0}
    2. {1}
    3. {2}
    4. {3}
    5. {4}
    """.format(top_word, longest_line, max_uniq_symbols_line_number,
               max_uniq_words_line_number, palindrome_words_count)