C121212123112323223313132322331323331323131333131133132332313231323211   >>    C12121212311232322331313232233132333132313133313113313233231323132321   <<    C121212123112323223313132322331323331323131333131133132332313231323213   >>      C121212123112323223313132322331323331323131333131133132332313231323212   >>