function solve(input) {

    let deck = input.shift()
    let myDeck = [];

    for (const iterator of input) {
        if (iterator == `Ready`) {
            break;
        }

        let [command,element1,element2] = input.shift().split(" ")

        if (command == `Add`) {
            if (!deck.includes(element1)) {
                console.log(`Card not found.`);
            } else {
                myDeck.push(element1);
            }
        } else if (command == `Insert`) {
            if (!myDeck.includes(element1) || element2 < 0 && element2 > deck.length) {
                console.log(`Error!`);
            } else {
                myDeck.splice(element2, 0, element1);
            }
        } else if (command == `Remove`) {
            if (!myDeck.includes(element1)) {
                console.log(`Card not found.`);
            } else {
                let index = myDeck.indexOf(element1)
                myDeck.splice(index, 0);
            }
        } else if (command == `Swap`) {
            let index1 = Number(myDeck.indexOf(element1));
            let index2 = Number(myDeck.indexOf(element2));
            myDeck[index1] = element2;
            myDeck[index2] = element1;
        } else if (command == `Shuffle deck`) {
            myDeck = myDeck.reverse();
        }
    }

    console.log(myDeck.join(` `));

}