import sys
import re

for line in sys.stdin:
    numbers = re.fullmatch(r"(\d{3}-\d{3}-\d{2}-\d{2})|(\d{3}-\d{2}-\d{2}-\d{3})", line.replace("\n", ""), flags=re.IGNORECASE)
    if numbers:
        print("yes")
    else:
        print("no")