D12111132131133131333132233132311331323131132111133132311312121   >>    D1211113213113313133313223313231133132313113211113313231131212   <<    D12111132131133131333132233132311331323131132111133132311312123   >>      D12111132131133131333132233132311331323131132111133132311312122   >>