def solution(A):
 negativeIntegers = []
 positiveIntegers = []
 twoDigitsPositiveIntegers = []
 twoDigitsNegativeIntegers = []
 
  for x in A:
    if x<0:
     negativeIntegers.append(str(x))
    else:
      positiveIntegers.append(str(x))
  for y in negativeIntegers:
   if len(y) == 3:
    twoDigitsNegativeIntegers.append(int(y))
  for  z in positiveIntegers:
   if len(z) == 2:
     twoDigitsPositiveIntegers.append(int(z))
   
  Result = sum(twoDigitsNegativeIntegers) + sum(twoDigitsPositiveIntegers)
  return result