05. Fishing Boat

budget = int(input())
season = input()
fisherman_count = int(input())
boat_rent = None

if season == "Spring":
    boat_rent = 3000
    if fisherman_count <= 6:
        boat_rent *= 0.9
    elif 7 <= fisherman_count <= 11:
        boat_rent *= 0.85
    elif fisherman_count >= 12:
        boat_rent *= 0.75

elif season == "Summer" or season == "Autumn":
    boat_rent = 4200
    if fisherman_count <= 6:
        boat_rent *= 0.9
    elif 7 <= fisherman_count <= 11:
        boat_rent *= 0.85
    elif fisherman_count >= 12:
        boat_rent *= 0.75

elif season == "Winter":
    boat_rent = 2600
    if fisherman_count <= 6:
        boat_rent *= 0.9
    elif 7 <= fisherman_count <= 11:
        boat_rent *= 0.85
    elif fisherman_count >= 12:
        boat_rent *= 0.75

if fisherman_count % 2 == 0 and not season == "Autumn":
    boat_rent *= 0.95

diff = abs (budget - boat_rent)

if budget >= boat_rent:
    print(f"Yes! You have {diff:.2f} leva left.")
elif budget < boat_rent:
    print(f"Not enough money! You need {diff:.2f} leva.")