B331133131323131133132233133313231333132233132313331333132313121211331121   >>    B33113313132313113313223313331323133313223313231333133313231312121133112   <<    B331133131323131133132233133313231333132233132313331333132313121211331123   >>      B331133131323131133132233133313231333132233132313331333132313121211331122   >>