Afghan Symbols

RFE-RL has an interesting article about using symbols to identify candidates on the ballot in Afghanistan's Parliamentary elections. It's an interesting idea, though I must be missing something since I don't understand how people can be confused by multi-digit numbers - couldn't they for this purpose just treat it as a sequence of one-digit numbers? That aside, I wonder if there will be complaints that the commission deciding the symbols will give more desirable symbols to favored candidates?