D21221323131123313131333132233131323133313233211113313231333132323213231   >>    D2122132313112331313133313223313132313331323321111331323133313232321323   <<    D21221323131123313131333132233131323133313233211113313231333132323213233   >>      D21221323131123313131333132233131323133313233211113313231333132323213232   >>