const printLove = (name) => {
  let result = 'Con amor ' + name;
  return result;
}

const limitFunction = (cb, n) => {
  return (...args) => {
    if(n > 0){
      n--;
      return cb(...args);
    }
    return null
  }
}


const  sayLove = limitFunction(printLove, 2);

console.log(sayLove('german'));
console.log(sayLove('german'));