function solve(arr) {
    let peshoInventory = arr.shift().split(' ');
    for (let param of arr) {
        let currentElement = param.split(" ");
        let command = currentElement[0];
        let equipment = currentElement[1];

        if (command === 'Upgrade') {
            equipment = currentElement[1].split("-")[0];
        }

        let index = peshoInventory.indexOf(equipment);

        if (command === "Buy" && index === -1) {
            peshoInventory.push(equipment);
        } else if (command === "Trash" && index !== -1) {
            peshoInventory.splice(index, 1)
        } else if (command === "Repair" && index !== -1) {
            let forRepair = peshoInventory.splice(index, 1);
            peshoInventory.push(forRepair);
        } else if (command === "Upgrade" && index !== -1) {
            let expansion = currentElement[1].replace('-', ':');
            peshoInventory.splice(index + 1, 0, expansion)
        }
    }
    console.log(peshoInventory.join(" "))
}