B3311331313231311331322331333132333132332113313331333133313231333132222131   >>    B331133131323131133132233133313233313233211331333133313331323133313222213   <<    B3311331313231311331322331333132333132332113313331333133313231333132222133   >>      B3311331313231311331322331333132333132332113313331333133313231333132222132   >>