Please solve this digital logic design on a paper please

   

Write a program that reads a sentence and store it in an array of characters. The program also reads a word and store in it a string variable. The program then conceals the word in the sentence with the character '@'. Sample input/output: Enter a sentence: The town in which we live is a green town and big Enter a word: town Result: The @@@@ in which we live is a green @@@@ and big