Write a program letters. py that does the following: The user provides a sentence as input. The program prints the number of repetitions of each letter in the sentence. Do not include punctuations, special characters, and spaces in the count. Your program should be case-insensitive. You must print the letters in alphabetical order. Hint: You can use a dictionary to store the letters and the count of letters.

Are special characters that allow you to search for multiple words at the same time.

Self contained sequences of actions to be performed are? a. expressions b. algorithms c. functions d. formulas

7. design a circuit with three inputs (x, y, and z) representing the bits in a binary number, and three outputs (a, b, and c) also representing bits in a binary number. when the input is 1, 2, or 3, the binary output should be one lesser than the input. when the input is 4, 5, or 6, the binary output should be one greater than the input. when the input is 0, the output is 0, and when the input is 7, the output is 7. show your truth table, all computations for simplification, and the final circuit.