function solve(arr) {


  let neighbors = arr.shift().split('@').map(Number);

  let index = 0;

  let jumpHolder = 0;



  // console.log(arr, neighbors);


  while (arr[index] !== 'Love!') {

    let current = arr[index].split(' ');

    jumpHolder += Number(current[1]);


    if (jumpHolder > neighbors.length - 1) {

      jumpHolder = 0;

    }


    if (neighbors[jumpHolder] === 0) {

      console.log(`Place ${jumpHolder} already had Valentine's day.`);

    } else {

      neighbors[jumpHolder] -= 2;

        if (neighbors[jumpHolder] === 0) {

        console.log(`Place ${jumpHolder} has Valentine's day.`);

    }

   }



    index++;

  }



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

   let arr2 = neighbors.filter(num => num !== 0);

    if (arr2.length === 0) {

      console.log(`Mission was successful.`);

    } else {

      console.log(`Cupid has failed ${arr2.length} places.`);

    }


  }