C121212123112323223313132322331323133313233313232233132313231331122311   >>    C12121212311232322331313232233132313331323331323223313231323133112231   <<    C121212123112323223313132322331323133313233313232233132313231331122313   >>      C121212123112323223313132322331323133313233313232233132313231331122312   >>