function cracklepop(n) {
  switch (n) {
  case !(n % 3):
    process.stdout.write("crackle");
  case !(n % 5):
    process.stdout.write("pop");
  default:
    process.stdout.write(n);
  console.log();
}

for (var i = 1; i <= 100; i++) {
  cracklepop(i);
}