B331133131323131133132233133313231333132233132313331333132333232212331   >>    B33113313132313113313223313331323133313223313231333133313233323221233   <<    B331133131323131133132233133313231333132233132313331333132333232212333   >>      B331133131323131133132233133313231333132233132313331333132333232212332   >>