B331133131323131133132233133313231333132233132313331333132332113313233313123221   >>    B33113313132313113313223313331323133313223313231333133313233211331323331312322   <<    B331133131323131133132233133313231333132233132313331333132332113313233313123223   >>      B331133131323131133132233133313231333132233132313331333132332113313233313123222   >>