function solve(input = []) {
  let pirateShip = input.shift().split('>').map(Number);
  let warShip = input.shift().split('>').map(Number);
  let maxHealth = Number(input.shift());
  let needRepair = 0;
  let command;

  while ((command = input.shift()) !== 'Retire') {

    let currComand = command.split(' ');

    switch (currComand[0]) {
      case 'Fire':
        let index = +currComand[1];
        let damage = +currComand[2];
        if (index >= 0 && index < warShip.length) {
          warShip[index] -= damage;
          if (warShip[index] <= 0) {
            console.log('You won! The enemy ship has sunken.');
            return;
          }
        }
        break;

      case 'Defend':
        let startIndex = +currComand[1];
        let endIndex = +currComand[2];
        let attackPower = +currComand[3];

        if (startIndex >= 0 && startIndex < pirateShip.length && endIndex >= 0 && endIndex < pirateShip.length) {
          for (let i = startIndex; i <= endIndex; i++) {
            pirateShip[i] -= attackPower;

            if (pirateShip[i] <= 0) {
              console.log(`You lost! The pirate ship has sunken.`);
              return;
            }
          }
        }
        break;

      case 'Repair':
        let repairIndex = +currComand[1];
        let health = +currComand[2];
        if (repairIndex >= 0 && repairIndex < pirateShip.length) {
          pirateShip[repairIndex] += health;
          if (pirateShip[repairIndex] > maxHealth) {
            pirateShip[repairIndex] = maxHealth;
          }
        }
        break;

      case 'Status':
        for (let i = 0; i < pirateShip.length; i++) {
          const element = pirateShip[i];
          if (element < maxHealth * 0.20) {
            needRepair++;
          }
        }
        console.log(`${needRepair} sections need repair.`);
    }
  }
  let sumWarShip = warShip.reduce((a, b) => a + b);
  let sumPirate = pirateShip.reduce((acc, value) => acc + value);
  console.log(`Pirate ship status: ${sumPirate}`);
  console.log(`Warship status: ${sumWarShip}`);
}