abfabf contains af0af1af2af3af4af5af6af7af8af9afaafaf0af1af2af3af4af5af6af7af8af9afaafbafcafdafeaffbafcafdafeaffaf contains fb0fb1fb2fb3fb4fb5fb6fb7fb8fb9fbafbbfbcfbdfbefbfb0fb1fb2fb3fb4fb5fb6fb7fb8fb9fbafbbfbcfbdfbefbfffb contains ab0ab1ab2ab3ab4ab5ab6ab7ab8ab9abaabab0ab1ab2ab3ab4ab5ab6ab7ab8ab9abaabbabcabdabeabfbabcabdabeabfab
contains af0af1af2af3af4af5af6af7af8af9afaafaf0af1af2af3af4af5af6af7af8af9afaafbafcafdafeaffbafcafdafeaffaf
contains fb0fb1fb2fb3fb4fb5fb6fb7fb8fb9fbafbbfbcfbdfbefbfb0fb1fb2fb3fb4fb5fb6fb7fb8fb9fbafbbfbcfbdfbefbfffb
contains ab0ab1ab2ab3ab4ab5ab6ab7ab8ab9abaabab0ab1ab2ab3ab4ab5ab6ab7ab8ab9abaabbabcabdabeabfbabcabdabeabfab