Korea can be divided into specialty tracks that accord with a student's interest and career path or a normal state high school. For special high schools, there are science (Science high school), foreign language, international, and art specialty high schools that students can attend by passing entrance examinations which are generally highly competitive. These schools are called special-purpose high schools. Autonomous private high schools are relatively free of the policy of the Ministry of Education. Also, there are schools for gifted students. Tuition of many special-purpose high schools, autonomous private high schools, and schools for gifted students are extremely expensive (the average of tuition of special-purpose or autonomous private high school is US$5,614 per year.) One of the schools for gifted students is US$7,858 per year. There are a few schools that require more than what is calculated as an average. CheongShim International Academy, Hankuk Academy of Foreign Studies, Korean Minjok Leadership Academy, and Hana Academy Seoul are infamous for their expensive tuition. Simultaneously, these schools are known for students' high academic achievement and college results, sending more than 50% of their students to "SKY universities" yearly. Other types of high schools include standard public high schools and standard private high schools, both with or without entrance examinations. These high schools do not specialize in a particular field but are more focused on sending their students to top and popular colleges. However, since the emergence of special-purpose, autonomous private schools, international schools, and schools for gifted students, standard high schools struggle to send students to "top and popular" universities. Standard high schools generally cannot compete with specialized schools' infrastructures, teaching resources, and activities that improve students' school records. As such, for a student at a standard high school, it is difficult to enter "SKY". Excellent students and their parents therefore avoid entering into standard high schools. Only students whose grades are too low to enter vocational school (or whose grades are simply average) enter normal high schools. This continues to discourage excellent students from attending normal high schools because the academic level of students is low. This vicious cycle turned standard schools into "slums" in the public eye. As a result, the admissions committees of top universities tend to reject students from standard schools; there is a preference to admit students from special-purpose, autonomous private schools, international schools, and schools for gifted students. This has made the competition of entering