c++ program urgent

[Marks 30) Problem No. 2: Write a C++ program that takes input only a positive number in an integer variable say, num. The task is to find the sum of all possible expressions by inerting the operator between the digits of num, any number of times Example No. 1: Input: num = 125 Output 176 1 Explanation Inserting "+" after 1st index modifies to "1+25" and value = 26 Inserting "+" after 2nd index modifies to "12+5 and value = 17 Inserting "+" after both 1st and 2nd index modifies to "1+2+5" and value = 8 Inserting "+" before 1st and after the last index is the same which modities to "125" value = 125 Therefore, the total sum of all possible expression is 125 + 26 + 17 + 8 = 176 Example No. 2: Input: Output: num = 1059 sum--1416 ju16 Breakdown of output ((1+059) +10+59) +(105+9) + (1+0+59) + (10+5+9) + (1+0+5+9)+(1+05+9) (1059) } = 2