function solve(arr) {


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

 let i = 0;


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



    let curr = arr[i].split(' ');

   let index1 = Number(curr[1]);

   let index2 = Number(curr[2]);



    switch (curr[0]) {

      case 'swap':

     let elem1 = workArr.slice(index1, index1 + 1);

     let elem2 = workArr.slice(index2, index2 + 1);


     workArr.splice(index1, 1, elem2);

     workArr.splice(index2, 1, elem1);

     workArr = workArr.flat();

     break;

     case 'multiply':

      workArr[index1] = workArr[index1] * workArr[index2];

      break;

      case 'decrease':

     workArr = workArr.map(el => el - 1);

      break;


    }

    i++;

  }


  console.log(workArr.join(', '));

  }