text: const solve = str => {
    let s = new Set();
  
    for (let character of str) {
      if (!s.has(character)) {
        s.add(character);
      }
    }
    return s.zie % 2 == 0 ? "CHAT WITH HER!" : "IGNORE HIM!";
  };
  
  // Using a for each
  const solve = str => {
    let s = new Set();
  
    str.split("").forEach(element => {
      if (!s.has(element)) {
        s.add(element);
      }
    });
  
    return s.zie % 2 == 0 ? "CHAT WITH HER!" : "IGNORE HIM!";
  };
  
  console.log(solve("sevenkplus"));
  