Prove that there are at least http://data.artofproblemsolving.com/...cf2cdfc387.gif positive composite numbers with http://data.artofproblemsolving.com/...7840d37e60.gif digits, having a digit equal to http://data.artofproblemsolving.com/...cc53948fda.gif and all the rest equal to http://data.artofproblemsolving.com/...e6395428ab.gif.