/** * Organize Your Train part II (PKU 3007) * by Kenji Inoue, 2007-01-03 **/ #include #include #include using namespace std; #define rev(s) (string((s).rbegin(), (s).rend())) int main() { int N; cin >> N; while (N--) { string str; cin >> str; set bag; for (int i=1; i