CF988B Substrings Sort

给定一个数n和n个字符串，求一个重新排列，对于新排列中的每个字符串 都满足在它前面的串都是它的子串。 感谢@南方不败 提供翻译

第一行n，第二行开始n个字符串

If it is impossible to reorder $ n $ given strings in required order, print "NO" (without quotes). Otherwise print "YES" (without quotes) and $ n $ given strings in required order.

In the second example you cannot reorder the strings because the string "abab" is not a substring of the string "abacaba".