C3123121111113313121111331333132313331333131123313331323223331333232311   >>    C312312111111331312111133133313231333133313112331333132322333133323231   <<    C3123121111113313121111331333132313331333131123313331323223331333232313   >>      C3123121111113313121111331333132313331333131123313331323223331333232312   >>