Thirteen years ago, Seo Jin was thrice as old as Yon Hee. Yon Hee had fourteen pairs of shoes each month from the time she started working as an opera singer. Two years after this year 2021, Seo Jin will already be thirty and she buys fourteen dresses each year. At some eight years (2029), Yon Hee will be older for sure, and her shoes will be a lot more than before. In 2063, Yon Hee will be seventy-one years old. How many years older will Seo Jin be when Yon Hee turns thiry-eight? 71 63 29 21 8

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