Write a program that will read the file textbook. txt character by character, which contains the preface ofyourtextbook repeated several times. For each uppercase character (A-Z) that is read, use Treap Search function to search your treap for that character (which should always find a match). For each lowercase character (a-z) that is read, convert it to uppercase and then use TreapSearchfunctionto search your treap (again, itshould always find a match). Skip all other characters that are read. Measure thetotaltime it takes for searching all lettersin the file.