function zadacha4(input){
    let a = Number(input[0])
    let b = Number(input[1])
    let c = Number(input[2])
    let box = a * b * c
    let i = 3
    let stuff = input[3]
    let sum = 0
    let end = 0
    while(stuff !== "Done" ){
        sum += stuff
        i++
        if(stuff === ""){
            break;
        }
    }
    console.log(sum)
    end = box - sum
    if(box >= sum){
        console.log(`${Math.abs(end)} Cubic meters left.`)
    }else{
        console.log(`No more free space! You need ${Math.abs(end)} Cubic meters more.`)
    }
}
zadacha4([
    10,
1,
2,
4,
6,
"Done"
])