function foodForPets (input) {

    let days = Number(input.shift());
    let food = Number(input.shift());
    let countDays = 0;

    let FoodEaten = 0; //


    let allFood = 0;
    let dogFood = 0;
    let catFood = 0;



    let biscuits = 0;

    let cats = 0;
    let dogs = 0;

    for(let i = 0; i < days; i++ ) {
        countDays++;
        let dogQuantity = Number(input.shift());
        let catQuantity = Number(input.shift());
        let eatenFromDog = 0;
        let eatenFromCat = 0;

        FoodEaten += dogQuantity + catQuantity;
        dogs += dogQuantity;
        cats += catQuantity;






        if(countDays % 3 == 0) {


            biscuits = (dogQuantity + catQuantity) * 0.10;
        }






    }

    allFood = ((FoodEaten / food) * 100);
    dogFood = ((dogs / FoodEaten)  * 100)
    catFood = ((cats / FoodEaten) * 100)







    console.log(`Total eaten biscuits: ${Math.ceil(biscuits)}gr.`)
    console.log(`${allFood.toFixed(2)}% of the food has been eaten.`)
    console.log(`${dogFood.toFixed(2)}% eaten from the dog.`)
    console.log(`${catFood.toFixed(2)}% eaten from the cat.`)


}