C12121223131323223313132322331323132313231333132313113313131111   >>    C1212122313132322331313232233132313231323133313231311331313111   <<    C12121223131323223313132322331323132313231333132313113313131113   >>      C12121223131323223313132322331323132313231333132313113313131112   >>