function solve(arr) {

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

  let i = 0;

  let values = '';

  let valueHolder = 0;


    while (arr[i] !== 'End'){

      let inputIndex = Number(arr[i]);


      if(inputIndex < targets.length) {

         valueHolder = targets[inputIndex];

          targets[inputIndex] = -1;

          for (let j = 0; j < targets.length; j++) {

            if (valueHolder < targets[j] && targets[j] !== -1) {

              targets[j] -= valueHolder;

            } else if (valueHolder >= targets[j] && targets[j] !== -1) {

              targets[j] += valueHolder;

            }

          }


      }

      i++;
    }


     shotTargets = targets.filter(num => num === -1);

      targets.forEach(num => values += `${num} `);

      console.log(`Shot targets: ${shotTargets.length} -> ${values}`);


  }