C12121223131323223313132322331323132313231333132313132322332211   >>    C1212122313132322331313232233132313231323133313231313232233221   <<    C12121223131323223313132322331323132313231333132313132322332213   >>      C12121223131323223313132322331323132313231333132313132322332212   >>