B331133131323131133132233133313231333132233132313331333132313121111123221111   >>    B33113313132313113313223313331323133313223313231333133313231312111112322111   <<    B331133131323131133132233133313231333132233132313331333132313121111123221113   >>      B331133131323131133132233133313231333132233132313331333132313121111123221112   >>