from collections import deque
def Map():
  return list(map(int,input().split()))

N,X,Y = Map()
x = 0
y = 0
XX = deque()
YY = deque()
ans = 0
for i in range(N):
  P,c = map(str,input().split())
  P = int(P)
  cc = 1
  if c == 'A':
    if x < X:
      XX.append(i)
      x += 1
      ans += P
    elif y < Y:
      YY.append(i)
      y += 1
    else:
      if XX[0] < YY[0]:
        XX.popleft()
        XX.append(i)
        ans += P
      else:
        YY.popleft()
        YY.append(i)
  else:
    if y < Y:
      YY.append(i)
      y += 1
      ans += P
    elif x < X:
      XX.append(i)
      x += 1
    else:
      if YY[0] < XX[0]:
        YY.popleft()
        YY.append(i)
        ans += P
      else:
        XX.popleft()
        XX.append(i)
print(ans)