Consider the following programming segment. Your answer must rely on combinations structure. Answers that use sigma notation will not be accepted. counter=2000forni=a+5to3n+1dofcounter=counter+7forj=i+1to5n1do{counter=counter+11} a) Determine the value that the variable counter has after the segment is executed. Provide your answer as a function of n (ie formula which depends on n ). Make sure to explain how/why the parts of the formula relate to counting. Explanation: Answer: b) Evaluate your answer in part a) for n=50 and a=10. Show the work Then check this number by implementing the code in programming language of your choice. Use the value n=50 and a=10 and print the variable counter after the code execution. You must provide the screenshots of implementation and output