B. Grandfather Dovlet’s calculatortime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOnce Max found an electronic calculator from his grandfather Dovlet's chest. He noticed that the numbers were written with seven-segment indicators (https://en.wikipedia.org/wiki/Seven-segment_display).  Max starts to type all the values from a to b. After typing each number Max resets the calculator. Find the total number of segments printed on the calculator.For example if a = 1 and b = 3 then at first the calculator will print 2 segments, then — 5 segments and at last it will print 5 segments. So the total number of printed segments is 12.InputThe only line contains two integers a, b (1 ≤ a ≤ b ≤ 106) — the first and the last number typed by Max.OutputPrint the only integer a — the total number of printed segments.ExamplesInput1 3Output12Input10 15Output39
Input1 3
Output12
['implementation', '*1000']