This program prints out only the one and two letter words in a given text.

one_and_two_letter_words.py

import sys

myWords = []

for line in sys.stdin:
    line = line.strip()
    words = line.split(" ")
    for word in words:
        if len(word) < 3:
            myWords.append(word)
			
output = " ".join(myWords)
print output