D3313223323213233313231323232132313231333132311331323223313231312121   >>    D331322332321323331323132323213231323133313231133132322331323131212   <<    D3313223323213233313231323232132313231333132311331323223313231312123   >>      D3313223323213233313231323232132313231333132311331323223313231312122   >>