D12121111111123313133313133313231131323132322331323132321233132313331323232111   >>    D1212111111112331313331313331323113132313232233132313232123313231333132323211   <<    D12121111111123313133313133313231131323132322331323132321233132313331323232113   >>      D12121111111123313133313133313231131323132322331323132321233132313331323232112   >>