function maxima(input) {
//Input
    let favBook = input.shift();
    let libraryCapacity = Number(input.shift());
    let i = 0;

//Code
    while (i <= libraryCapacity) {

        let bookChecker = input.shift();

        if (bookChecker === favBook) {
            console.log(`You checked ${i} books and found it.`);
            break;
        } else if (i === libraryCapacity) {
            console.log("The book you search is not here!");
            console.log(`You checked ${i} books.`);
        }
        i++;
    }
}