D212213231311233131313331322331313231333132332111133132313331323222331221   >>    D21221323131123313131333132233131323133313233211113313231333132322233122   <<    D212213231311233131313331322331313231333132332111133132313331323222331223   >>      D212213231311233131313331322331313231333132332111133132313331323222331222   >>