B331133131323131133132233133313231333132233132313331331123132322121   >>    B33113313132313113313223313331323133313223313231333133112313232212   <<    B331133131323131133132233133313231333132233132313331331123132322123   >>      B331133131323131133132233133313231333132233132313331331123132322122   >>