D1122211211331313331323221123313233313112211232233131333132313331322331323321   >>    D112221121133131333132322112331323331311221123223313133313231333132233132332   <<    D1122211211331313331323221123313233313112211232233131333132313331322331323323   >>      D1122211211331313331323221123313233313112211232233131333132313331322331323322   >>