C3131313233313113313123132313231323331323221122112323331323221323132323221   >>    C313131323331311331312313231323132333132322112211232333132322132313232322   <<    C3131313233313113313123132313231323331323221122112323331323221323132323223   >>      C3131313233313113313123132313231323331323221122112323331323221323132323222   >>