B331133131323131133132233133313231333132233132313331333133312213231321   >>    B33113313132313113313223313331323133313223313231333133313331221323132   <<    B331133131323131133132233133313231333132233132313331333133312213231323   >>      B331133131323131133132233133313231333132233132313331333133312213231322   >>