Directions: Study the following information carefully and answer the questions that follow: There is a matrix of 4*4. The rows are represented as %, $, # and @ from the first to the fourth in the same order and the columns are represented as 1 to 4 from the first to the fourth in the same order. 

Following operations are to be performed in the given order to obtain the whole matrix.

1. One diagonal of matrix is IBPS and the other diagonal is 2019 in the same order. Both have their first element in the first Column and 4th column respectively. 

2. The immediate neighbor of any alphabet in the same row is the alphabetical position of that number.

3. The remaining places are to be filled by taking the difference between the two numbers surrounding that place in the same row.

In the obtained matrix, the value of the sum of all digits in the second column would be less than that of the third column. 

The compiler of a PC will respond to the input by calculating the value of the string as per the following conditions.

1. If there are equal number of even and odd numbers in the string, then value of the string will be the absolute difference between all the even numbers and all the odd numbers.

2. If there are equal number of alphabets and numbers in the string, then the value of string will be the absolute difference between the alphabetical position of all the alphabets and all the numbers.

3. If there is only one even number in the string, then the value of string will be the addition of all the numbers in that string.

4. If there is a vowel in the string, then value of the string will be the alphabetical position of that vowel.

5. If none of the above mentioned conditions follow, then the value of the string will be obtained by subtracting the lowest number from the highest number in that string. 

Note:

1. The value of an input is obtained by adding the values of all the strings and then the digits in that value is added up to the point where it becomes a single digit number and then it is taken as an input.

2. If only a single string is given, then the digits in that value is added upto the point where it becomes a single digit number and then it is taken as input.

3. If the value of an input is a prime number, then the program will be executed. If the value of an input is an even number, then program will not be executed. If the value of an input is both even and prime number, then program will be executed but it will show an error. If the value of an input is other than the above mentioned values, then PC will hang.

Let us assume a matrix: 

AA = $3 @2 %1 #2, BB = @1 $3 %2

$3 denotes value in second row and column 3 which will be equal to 7

Therefore AA = 7 14 1 10

So, this is satisfying condition 1. Hence the sum = (14 + 10) – (7 + 1) = 16

BB = O 7 2 

So, this is satisfying condition 4. Thus, frequency = alphabetical position of O = 15 The values of AA and BB are added, and the final frequency is 16 + 15 = 31 which is a two digit number, So again adding them 3 + 1 = 4, which is a non-prime even number so the program will not be executed.

Consider the following four strings for all questions: 

AA = $2 #1 @3 #3

BB = @1 %4 @3 %3

CC = $4 @2 #4 %1

DD = %4 @2 @4 #2