Set B(for roll numbers ending with evendigits) 1.Write a program to count the number of vowels and consonants present in an input string. 2.Write a program that accepts two matrices A and Bas input and returns their product AB.Check if A & B aremultipliable; if not, return error message.| 3.Write a program to find the number of common elements between two lists. The lists contain integers. 4.Write a program that accepts a matrix as input and returns its transpose.