B331133131323131133132233133313231333132233132313331333131313232212131   >>    B33113313132313113313223313331323133313223313231333133313131323221213   <<    B331133131323131133132233133313231333132233132313331333131313232212133   >>      B331133131323131133132233133313231333132233132313331333131313232212132   >>