C3123121111113313121111331333132313331333131123313231323223322121   >>    C312312111111331312111133133313231333133313112331323132322332212   <<    C3123121111113313121111331333132313331333131123313231323223322123   >>      C3123121111113313121111331333132313331333131123313231323223322122   >>