Solution: E-Commerce Order Processor

void main() {
  final orderStatuses = ['PENDING', 'CANCELLED', 'SHIPPED', 'UNKNOWN', 'PENDING'];
  
  for (final status in orderStatuses) {
    if (status == 'CANCELLED') {
      continue;
    }
    
    switch (status) {
      case 'PENDING':
        print('Route to packing line.');
      case 'SHIPPED':
        print('Route to tracking system.');
      default:
        print('Flag for manual review.');
    }
  }
}