D33132233221323331323331323211232313232113313231313331323123232221   >>    D3313223322132333132333132321123231323211331323131333132312323222   <<    D33132233221323331323331323211232313232113313231313331323123232223   >>      D33132233221323331323331323211232313232113313231313331323123232222   >>