D23331323121121133132322331313113313223313223313223313231231211   >>    D2333132312112113313232233131311331322331322331322331323123121   <<    D23331323121121133132322331313113313223313223313223313231231213   >>      D23331323121121133132322331313113313223313223313223313231231212   >>