Input 2026 Output 261
Given a Calendar class (there are three fields, year, month, day) and a number of N, Implement a function that returns the calendar after N days.
Example: Input: {2017, 3,20} and 12, Output: {2017,4, 1}
Input: 1223 1+3=2*2 that means if sum of 1st and last digit is equal to product of remaining 2 digits then print 1+3=2*2 else error msg.
