#!/usr/bin/python
# -*- coding:utf-8 -*-
import sys

def do(filename):
    with open(filename, 'r') as f:
        string = f.read()

    string = string.strip()
    string = string.lower()

    dict_replacement = {
        " ": ["’", "-"],
        "": [",", "?", "!", ".", ":", ";", "\"", "»", "«"],
        "e": ["é", "è", "ê", "ë"],
        "i": ["ï", "î"],
        "c": ["Ç", "ç"],
        "o": ["ô",],
        "a": ["à",],
        "u": ["ù",],
        "oe": ["œ",]
    }

    for k, v in dict_replacement.items():
        for c in v:
            string = string.replace(c, k)

    mots = string.split()
    table = {}
    for pos, val in enumerate(mots):
        try:
            table[val].append(str(pos))
        except KeyError, e:
            table[val] = [str(pos)]

    tables = {}
    cur_len = 0
    tmp_len = 0
    for key, val in table.items():
        try:
            tables[len(val)][key] = val
        except KeyError, e:
            tables[len(val)] = {key: val}

    x = 0
    while True:
        x += 1
        try:
            tables[x] = sorted(tables[x].items(), key=lambda (k, v) : (int(v[0])))
            for k, v in tables[x]:
                print "- {}: {}".format(k, " ".join(v))
        except KeyError:
            if x >= len(tables.keys()):
                break;

if __name__=='__main__':
    do(sys.argv[1])