function gladiatorInventory(input) {
    let currentEquipment = input[0]
        .split(' ');

    let outputArr = currentEquipment.slice(0);

    for (let i = 1; i < input.length; i++) {
        let tokens = input[i].split(' ');
        let command = tokens[0];
        let item = tokens[1];

        if (command === "Buy") {
            outputArr.push(item);
        }
        if (command === "Trash") {
            let indexOfItem = outputArr.indexOf(item);
            if (outputArr.includes(item)) {
                outputArr.splice(indexOfItem, 1);
            }
        }
        if (command === "Repair") {
            let repairedItem = outputArr.indexOf(item);
            if (outputArr.includes(item)) {
               outputArr.splice(repairedItem, 1);
                outputArr.push(item);
            }
        }
        if (command === "Upgrade") {
            let itemToUpgrade = item.split('-');
            let itemUpgrade = itemToUpgrade[0];

            if (outputArr.includes(itemUpgrade)) {
                let upgradedItem = itemToUpgrade.join(':');
                let indexOfUpgragedItem = outputArr.indexOf(itemUpgrade);
                outputArr.splice(indexOfUpgragedItem + 1, 0, upgradedItem);
            }
        }
    }
console.log(outputArr.join(' '));

}