static bool cic(L<S> l, S s) {
  ret containsIgnoreCase(l, s);
}

static bool cic(S[] l, S s) {
  ret containsIgnoreCase(l, s);
}

static bool cic(S s, char c) {
  ret containsIgnoreCase(s, c);
}

static boolean cic(S a, S b) {
  ret containsIgnoreCase(a, b);
}