C12121223131323223313132322331323132313231333132322132312323131   >>    C1212122313132322331313232233132313231323133313232213231232313   <<    C12121223131323223313132322331323132313231333132322132312323133   >>      C12121223131323223313132322331323132313231333132322132312323132   >>