title: insert all Ascii chars with scanf(%10s)
body: <p>This program uses the <code>scanf </code>function and <code>%s</code> as the format specifier. This function is fix and I can not change anything in the program. Now I have to insert characters so that I get a special ASCII code in the storage. I already found out that if I want to write NUL (0x00) into the storage I can use 'Ctrl'+'Shift'+'@'.</p>
  <p>How can I get all the other special ASCII numbers?</p>
  <p>I don't know if this is important, I use linux and have an english keyboard.</p>