JINTAN, JIANGSU: The 20 students -- 18 boys and 2 girls --had a thousand reasons to be proud of themselves. They had just climbed their way to the top rung out of 4 million students taking part in the Fifth National Hua Luogeng Gold Cup Mathematics Contest on Tuesday evening. The 20 gold medal winners are all primary and middle school students under the age of 14. 'Many of the problems are of college level and these pupils can _ them _ . It is just unbelievable!'said a teacher from Guangdong province. Named after China's most famous mathematician, Hua Luogeng, the contest started in 1986,one year after his death. In less than 10 years, it has been recognized by the State Education Commission  as the country's biggest and best contest of its kind. This news story is mainly about  _   .
when the contest started how the contest got its name the 20 pupils who have won gold medals in the contest the 5th National Hua Luogeng Gold Cup Mathematics Contest