Read one integer typed as input, and print it back in the form You entered: 7.
This is the first time your program’s output depends on something it reads, rather than a value you typed
directly into the source code. scanf is printf’s counterpart for reading input, and it uses the same %d
placeholder – but notice the starter code has &n, not just n, in the scanf line. Don’t worry about exactly
why yet; just copy the pattern (scanf("%d", &something) to read, printf("...", something) to print) for now.
Module 2 explains precisely what that & is doing.