B331133131323131133132233133313231333132233132313331333133112312121111123231121   >>    B33113313132313113313223313331323133313223313231333133313311231212111112323112   <<    B331133131323131133132233133313231333132233132313331333133112312121111123231123   >>      B331133131323131133132233133313231333132233132313331333133112312121111123231122   >>