function solve(input = []) {
  let houses = input.shift().split('@').map(Number);
  let commands = input.shift();

  let currentIndex = 0;

  while (commands !== 'Love!') {
    let tokens = commands.split(' ');
    let jumpLength = +tokens[1];

    currentIndex += jumpLength;

    if (currentIndex >= houses.length) {
      currentIndex = 0;
    }

    if (houses[currentIndex] === 0) {
      console.log(`Place ${currentIndex} already had Valentine's day.`);
    } else {
      houses[currentIndex] -= 2;
      if (houses[currentIndex] === 0) {
        console.log(`Place ${currentIndex} has Valentine's day.`);
      }
    }

    commands = input.shift();
  }

  console.log(`Cupid's last position was ${currentIndex}.`);

  let isSuccess = true;
  let count = 0;

  for (const house of houses) {
    if (house !== 0) {
      isSuccess = false;
      count++;
    }
  }

  if (isSuccess) {
    console.log(`Mission was successful.`);
  } else {
    console.log(`Cupid has failed ${count} places.`);
  }
}

solve(['10@10@10@2', 'Jump 1', 'Jump 2', 'Love!']);