C121212123112323223313132322331323331323132322223313132313233321   >>    C12121212311232322331313232233132333132313232222331313231323332   <<    C121212123112323223313132322331323331323132322223313132313233323   >>      C121212123112323223313132322331323331323132322223313132313233322   >>