D1122211211331313331323221123313233313112211232233131333131133221   >>    D112221121133131333132322112331323331311221123223313133313113322   <<    D1122211211331313331323221123313233313112211232233131333131133223   >>      D1122211211331313331323221123313233313112211232233131333131133222   >>