B331133131323131133132233133313231333132233132313331323211231211   >>    B33113313132313113313223313331323133313223313231333132321123121   <<    B331133131323131133132233133313231333132233132313331323211231213   >>      B331133131323131133132233133313231333132233132313331323211231212   >>