function solve(input) {
    let food = Number(input.shift()) * 1000
    let eatenFood = 0;

    while (input[0] != 'Adopted') {
        eatenFood += Number(input.shift())
    }

    if (food >= eatenFood) {
        console.log(`Food is enough! Leftovers: ${food - eatenFood} grams.`)
    } else {
        console.log(`Food is not enough. You need ${eatenFood - food} grams more.`)
    }
}
solve([
    2,
    999,
    456,
    999,
    999,
    123,
    456,
    'Adopted'
])