Use 4D arrays to show the working on a company

#include <iostream>
#define COLS 4 // change to 6 for the challenge
#define ROWS 5

using namespace std;

int main() {
  int employees[ROWS][COLS];
  for (int i = 0; i < ROWS; i++) {
    for (int j = 0; j < COLS; j++) {
      cout << "Enter employee " << i + 1 << "'s ";
      switch (j) {
        case 0: cout << "ID: "; break;
        case 1: cout << "age: "; break;
        case 2: cout << "years of service: "; break;
        case 3: cout << "salary: "; break;
      }
      cin >> employees[i][j];
    }
  }
  cout << "Employee\tID\tAge\tYears\tSalary\n";
  for (int i = 0; i < ROWS; i++) {
    cout << i + 1 << "\t\t";
    for (int j = 0;