#include <stdio.h>
#include <stdlib.h>

int cmp_ll_rev (const void *ap, const void *bp) {
  long long a = *(long long *)ap;
  long long b = *(long long *)bp;
  
  if (a < b) {
    return 1;
  }
  
  if (a > b) {
    return -1;
  }
  
  return 0;
}

int main () {
  int n = 0;
  int x = 0;
  int y = 0;
  long long p = 0LL;
  char c = '\0';
  
  int res = 0;
  
  long long ans = 0LL;
  long long sum[400000][3] = {};
  int cnt[2] = {};
  
  res = scanf("%d", &n);
  res = scanf("%d", &x);
  res = scanf("%d", &y);
  for (int i = 0; i < n; i++) {
    res = scanf("%lld", &p);
    res = scanf("%c", &c);
    res = scanf("%c", &c);
    if (c == 'A') {
      sum[i%(x+y)][1] += p;
    } else {
      sum[i%(x+y)][2] += p;
    }
  }
  
  for (int i = 0; i < x+y; i++) {
    if (sum[i][1] < sum[i][2]) {
      sum[i][0] = sum[i][2]-sum[i][1];
    } else {
      sum[i][0] = sum[i][1]-sum[i][2];
    }
  }
  
  qsort(sum, x+y, sizeof(long long)*3, cmp_ll_rev);
  
  for (int i = 0; i < x+y; i++) {
    if (sum[i][1] < sum[i][2] && cnt[1] < y) {
      ans += sum[i][2];
      cnt[1]++;
    } else if (sum[i][1] < sum[i][2]) {
      ans += sum[i][1];
    } else if (cnt[0] < x) {
      ans += sum[i][1];
      cnt[0]++;
    } else {
      ans += sum[i][2];
    }
  }
  
  printf("%lld\n", ans);
  return 0;
}