extern const char *const in;

class S {
public:
  char res[33];
  S() {
    for (int i = 0; i < 32; i++) {
      const char *line = in + i * 8;
      res[i] = line[line[1] == line[2] ? 2 : 4];
    }
    res[32] = 0;
  }
};

S s;
constexpr const char *f(const char *in) {
  return s.res;
}