A. Lucky Yeartime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputApart from having lots of holidays throughout the year, residents of Berland also have whole lucky years. Year is considered lucky if it has no more than 1 non-zero digit in its number. So years 100, 40000, 5 are lucky and 12, 3001 and 12345 are not.You are given current year in Berland. Your task is to find how long will residents of Berland wait till the next lucky year.InputThe first line contains integer number n (1 ≤ n ≤ 109) — current year in Berland.OutputOutput amount of years from the current year to the next lucky one.ExamplesInput4Output1Input201Output99Input4000Output1000NoteIn the first example next lucky year is 5. In the second one — 300. In the third — 5000.
Input4
Output1
['implementation', '*900']