D112111123313223313112113313231133132333133313231323211331323132211   >>    D11211112331322331311211331323113313233313331323132321133132313221   <<    D112111123313223313112113313231133132333133313231323211331323132213   >>      D112111123313223313112113313231133132333133313231323211331323132212   >>