Imibala ephakamileyo yamanqanaba amanyathelo phakathi kwemibala ephambili kunye neyesibili kwivili elingu-12 lombala. Ivili lemibala engama-12 linemibala ephambili, yesibini kunye nemigangatho ephezulu njengomfanekiso obonisiweyo, kunye no # 1 obonisa imibala ephambili, # 2 emele imibala yesibini, kunye # # emele imibala ephakamileyo. Ivili lemibala engama-6 liqukethe imibala ephambili kunye neyesibili, kunye nevili lesithathu lemibala elinesibini elinemibala ephambili.