B'You are given a date in "DD.MM.YYYY" ("day.month.year") format and a number of days shift you have to add to this date. Output the resulting date. The first line of input contains the date in "DD.MM.YYYY" format: two digits for day (with leading zero if needed), dot, two digits for month (with leading zero if needed), dot, four digits for year. The notation is guaranteed to give a valid date between 1980 and 2020, inclusive. The second line contains an integer shift ( xe2 x80 x89- xe2 x80 x891000 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89shift xe2 x80 x89 xe2 x89 xa4 xe2 x80 x891000). Output a date equal to the given one + shift days, in the same format "DD.MM.YYYY". When manipulating the dates, take into account leap years; don 't care about time zones/daylight saving time.'...