---

from datetime import datetime

try:
    a = input()
    b = input()
    
    f = "%Y.%m.%d"
    d1 = datetime.strptime(a, f)
    d2 = datetime.strptime(b, f)
    
    if d1 < d2:
        raise Exception("Age cannot be negative.")
    
    t = (d1 - d2).days
    y = t // 365
    d = t % 365
    
    print(f"{y} years, {d} days.")

except ValueError as e:
    print(f"Exception occurred: {e}")
except Exception as e:
    print(e)