export function sumMinWindow(numbers: number[], k: number): number {
  // Escribe tu solución 
  if(k > numbers.length) return -1;
  
  let sum = numbers.slice(0,k).reduce((a,c) => a+c,0);

  for(let i = 1; i < numbers.length - k; i++){
    const newSum = numbers.slice(i,i+k).reduce((a,c) => a+c,0);

    if(sum > newSum) sum = newSum;
  }
  
  return sum;
}