D121212121213132313113313231123313232233132332121111331323123221   >>    D12121212121313231311331323112331323223313233212111133132312322   <<    D121212121213132313113313231123313232233132332121111331323123223   >>      D121212121213132313113313231123313232233132332121111331323123222   >>