days = int(input())
quantity_food = float(input())
buscuits = 0
day_counter = 0
total_food_eaten = 0
percentage_food_eaten = 0
dog_eaten = 0
cat_eaten = 0
dog_eaten_perc = 0
cat_eaten_perc = 0

for day in range(1, days + 1):
    #current_day = int(input())
    dog_food = int(input())
    cat_food = int(input())
    total_food_eaten += dog_food + cat_food
    #total_food_eaten += total_food_eaten
    day_counter += 1
    dog_eaten += dog_food
    cat_eaten += cat_food
    if day_counter % 3 == 0:
        buscuits += 0.1 * (cat_food + dog_food)

    percentage_food_eaten = total_food_eaten / quantity_food * 100
    dog_eaten_perc = dog_eaten / total_food_eaten * 100
    cat_eaten_perc = cat_eaten /total_food_eaten * 100
print(f'Total eaten biscuits: {buscuits:.0f}gr.')
print(f'{percentage_food_eaten:.2f}% of the food has been eaten.')
print(f'{dog_eaten_perc:.2f}% eaten from the dog.')
print(f'{cat_eaten_perc:.2f}% eaten from the cat.')