B331133131323131133132233133313231333132233132313331323132212321   >>    B33113313132313113313223313331323133313223313231333132313221232   <<    B331133131323131133132233133313231333132233132313331323132212323   >>      B331133131323131133132233133313231333132233132313331323132212322   >>