C3123121111113313121111331333132313331333131123313231323223313233112331   >>    C312312111111331312111133133313231333133313112331323132322331323311233   <<    C3123121111113313121111331333132313331333131123313231323223313233112333   >>      C3123121111113313121111331333132313331333131123313231323223313233112332   >>