B331133131323131133132233133313231333132233132313331333131133112312121   >>    B33113313132313113313223313331323133313223313231333133313113311231212   <<    B331133131323131133132233133313231333132233132313331333131133112312123   >>      B331133131323131133132233133313231333132233132313331333131133112312122   >>