let input = ['2, 3, 1',
'5, 2, 3'];

    let print = this.print || console.log;
    let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);
    let arr = gets().split(', ');

    let arrTwo = gets().split(', ');


    let arrFinal = [];
   for(let i = 0; i < arr.length; i++){
       arrFinal.push(arr[i], arrTwo[i]);
    }

    print(arrFinal.join(','));