C12121223131323223313132322331323132313111122313231323132311211   >>    C1212122313132322331313232233132313231311112231323132313231121   <<    C12121223131323223313132322331323132313111122313231323132311213   >>      C12121223131323223313132322331323132313111122313231323132311212   >>