import re
import sys


def is5or6Digits(s):
    pattern = re.compile(r'^[1-9]\d{4,5}$')
    return bool(re.match(pattern, s))

inFile = sys.argv[1]
outFile = sys.argv[2]

# inFile = 'test.in'
# outFile = 'test.out'

with open(inFile, 'r', encoding='utf-8') as inputFile, open(outFile, 'w', encoding='utf-8') as outputFile:
    for line in inputFile:
        line = line.strip()
        result = "yes" if is5or6Digits(line) else "no"
        outputFile.write(result+'\n')