D212213231311233131313331322331313231333132332111133132313331323323221121   >>    D21221323131123313131333132233131323133313233211113313231333132332322112   <<    D212213231311233131313331322331313231333132332111133132313331323323221123   >>      D212213231311233131313331322331313231333132332111133132313331323323221122   >>