C121212123112323223313132322331323132333132312113313231323112113231   >>    C12121212311232322331313232233132313233313231211331323132311211323   <<    C121212123112323223313132322331323132333132312113313231323112113233   >>      C121212123112323223313132322331323132333132312113313231323112113232   >>