D212213231311233131122112313331323221333131333132322112331323133313231333222331   >>    D21221323131123313112211231333132322133313133313232211233132313331323133322233   <<    D212213231311233131122112313331323221333131333132322112331323133313231333222333   >>      D212213231311233131122112313331323221333131333132322112331323133313231333222332   >>