#!/usr/bin/env python3

# Challenge 279
#
# Task 2: Split String
# Submitted by: Mohammad Sajid Anwar
#
# You are given a string, $str.
#
# Write a script to split the given string into two containing exactly same
# number of vowels and return true if you can otherwise false.
#
# Example 1
#
# Input: $str = "perl"
# Ouput: false
#
# Example 2
#
# Input: $str = "book"
# Ouput: true
#
# Two possible strings "bo" and "ok" containing exactly one vowel each.
#
# Example 3
#
# Input: $str = "good morning"
# Ouput: true
#
# Two possible strings "good " and "morning" containing two vowels each or
# "good m" and "orning" containing two vowels each.

import sys

str_input = " ".join(sys.argv[1:])
vowels = sum(1 for char in str_input if char in "aeiouAEIOU")
print("true" if vowels % 2 == 0 else "false")