C1212122313132322331323323132313331323331313132313113313231323132211233131   >>    C121212231313232233132332313231333132333131313231311331323132313221123313   <<    C1212122313132322331323323132313331323331313132313113313231323132211233133   >>      C1212122313132322331323323132313331323331313132313113313231323132211233132   >>