Founders Day Speech

On the occasion of Founder Day of LBSIM, a young man, Mr. Qa Pta , is revising his speech again and again to remember it. He found that some of the letters in his speech is repeated quite often. Being very fond of programming, like the Chef, he took it as a challenge and decided to find this letter. He decided that: He will count the frequency of all English alphabets only and will consider upper