The cost of a well-loved snack in Japan is increasing for the first time in over 40 years.Umaibo corn puff was introduced in Japan in 1979.Its name means "delicious stick."People have loved Umaibo for many years for its special crunch and its 10-yen price.One Japanese yen is less than one U.S. cent--or one-hundredth of a dollar.The maker of Umaibo, Yaokin Corp, is increasing the price to 12 yen.The snack's first-ever price increase will begin in April.The price change is a reminder that Japan is feeling the effects of rising costs of raw materials and transportation.Prices of goods have been rising in many countries.But Japanese companies have so far avoided increasing prices out of fear of losing buyers.Longtime fans of Umaibo are surprised and saddened by the cost change."Umaibo have been the same price for so long, so a 2-yen increase is a big deal," 59-year-old Noriko Eda told Reuters. "I was surprised."