B331133131323131133132233133313231333132212113313331333133313331323222313232211   >>    B33113313132313113313223313331323133313221211331333133313331333132322231323221   <<    B331133131323131133132233133313231333132212113313331333133313331323222313232213   >>      B331133131323131133132233133313231333132212113313331333133313331323222313232212   >>