B331133131323131133132233133313231333132233132313331323223313123231211   >>    B33113313132313113313223313331323133313223313231333132322331312323121   <<    B331133131323131133132233133313231333132233132313331323223313123231213   >>      B331133131323131133132233133313231333132233132313331323223313123231212   >>