C121212123112323223313233313131323331323211132313231323132313232213221   >>    C12121212311232322331323331313132333132321113231323132313231323221322   <<    C121212123112323223313233313131323331323211132313231323132313232213223   >>      C121212123112323223313233313131323331323211132313231323132313232213222   >>