D12121111111123313133313133313231131323132322331323132311233132313331322321   >>    D1212111111112331313331313331323113132313232233132313231123313231333132232   <<    D12121111111123313133313133313231131323132322331323132311233132313331322323   >>      D12121111111123313133313133313231131323132322331323132311233132313331322322   >>