D12121212121313231311331323112331322132313231333131133132333132313331322331231   >>    D1212121212131323131133132311233132213231323133313113313233313231333132233123   <<    D12121212121313231311331323112331322132313231333131133132333132313331322331233   >>      D12121212121313231311331323112331322132313231333131133132333132313331322331232   >>