D131333132213233313233313131133132313331323112331322331323221111   >>    D13133313221323331323331313113313231333132311233132233132322111   <<    D131333132213233313233313131133132313331323112331322331323221113   >>      D131333132213233313233313131133132313331323112331322331323221112   >>