I need this in C# only

Assignment1A: Math Mad Libs: In traditional Mad Libs, you're given a paragraph of text with blanks; you then fill in those blanks to create an amusing or silly story. In this program, we will do the same thing - but with numbers! You will print out the following equation as a string literal: x + (y/z) * W = ? You will then prompt the user to enter one number at a time, replacing the variables from left to write with those numbers and printing the updated string to the screen. After the last number is entered, you will print the full equation with the solution replacing the "?" question mark