if (command == null)
break;
synchronized (JupiterNetworkManager.lock) {
if (command.substring(0, 3).equals(COMMAND_INS))
gui.insertCharInDoc(Integer.parseInt(command.substring(8, 9)) - 1, command.charAt(5));
if (command.substring(0, 3).equals(COMMAND_DEL))
gui.deleteCharFromDoc(Integer.parseInt(command.substring(4, 5)) - 1);
}
/* Wait before executing next task */