function manOWar(arr) {
    let pirateShip = arr.shift().split('>').map(Number);
    let warShip = arr.shift().split('>').map(Number);
    let maximumHC = Number(arr.shift());

    for (let row of arr) {
        let [command, ...args] = row.split(' ');
        if (command == 'Retire') {
            console.log(`Pirate ship status: ${pirateShip.reduce((a, b) => a + b, 0)}`);
            console.log(`Warship status: ${warShip.reduce((a, b) => a + b, 0)}`);
        } else if (command == 'Fire') {
            let index = Number(args[0]);
            let damage = Number(args[1]);
            if (index < warShip.length && index > -1) {
                if (warShip[index] - damage > 0) warShip.splice(index, 1, warShip[index] - damage);
                else {
                    warShip[index] = 0;
                    console.log(`You won! The enemy ship has sunken.`);
                    break;
                }
            }
        } else if (command == 'Defend') {
            let startIndex = Number(args[0]);
            let endIndex = Number(args[1]);
            let damage = Number(args[2])
            if (startIndex < pirateShip.length && startIndex > -1 && endIndex < pirateShip.length && endIndex > -1) {
                for (let i = startIndex; i <= endIndex; i++) pirateShip[i] = Math.max((pirateShip[i] - damage), 0);
                let setted = Array.from(new Set(pirateShip)).filter(x => x > 0);
                if (setted.length == 0) {
                    console.log(`You lost! The pirate ship has sunken.`);
                    break;
                }
            }
        } else if (command == 'Repair') {
            let index = Number(args[0]);
            let health = Number(args[1])
            if (index < pirateShip.length && index > -1) pirateShip[index] = Math.min((pirateShip[index] + health), maximumHC);
        } else if (command == 'Status') {
            console.log(`${pirateShip.filter(x => x < (maximumHC * 0.2)).length} sections need repair.`);
        }
    }
}