let input = [[4,1,2 ],[1, 3, 4, 2],];

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

let firstArray = gets().split(',');
let secondArray = gets().split(',');
let newArray = [];

for (let i = 0; i < firstArray.length; i++) {
  for (let j = 0; j < secondArray.length; j++) {

    if (firstArray[i] === secondArray[j]) {

      if (isNaN(secondArray[j + 1])) {
        newArray.push(-1);
        break;
      } else {

        for (let x = j + 1; x < secondArray.length; x++) {

          if (secondArray[x] > firstArray[i]) {
            newArray.push(secondArray[x]);
            break;
          } else {

            if (x + 1 === secondArray.length) {
              newArray.push(-1);
              break;
            }
          }
        }
      }
    }
  }
}

console.log(newArray.join(","));