#include <bits/stdc++.h>

using namespace std;

#define rep(i, s, e) for (int i = s; i <= e; ++i)
#define drep(i, s, e) for (int i = s; i >= e; --i)
#define file(a) freopen(#a".in", "r", stdin), freopen(#a".out", "w", stdout)
#define pv(a) cout << #a << " = " << a << endl
#define pa(a, l, r) cout << #a " : "; rep(_, l, r) cout << a[_] << ' '; cout << endl

using u32 = unsigned int;
using i64 = long long;

const int N = 2e5 + 10;

int read() {
  int x = 0, f = 1; char c = getchar();
  for (; c < '0' || c > '9'; c = getchar()) if (c == '-') f = -1;
  for (; c >= '0' && c <= '9'; c = getchar()) x = x * 10 + c - 48;
  return x * f;
}

int n;
char str[N];

#define ls (u << 1)
#define rs (u << 1 | 1)
#define mid (l + r >> 1)

u32 cl[N << 2][6], cr[N << 2][6], sl[N << 2][6], sr[N << 2][6], x[N << 2][6], y[N << 2][6];
i64 dat[N << 2];

void down(int u, char c) {
  rep(i, 0, 5) {
    cl[u][i] = cr[u][i] = 0;
    sl[u][i] = sr[u][i] = 0;
  }
  dat[u] = 0;
  rep(i, 0, 5) {
    x[u][i] = (i + (c == "bessie"[i])) % 6;
    y[u][i] = (i == 5) && (c == 'e');
  }
  cr[u][x[u][0]] = 1, sr[u][x[u][0]] = y[u][0];
  rep(i, 0, 5) cl[u][i] = 1, sl[u][i] = y[u][i];
}

void maintain(int u) {
  rep(i, 0, 5) {
    cl[u][i] = cr[u][i] = 0;
    sl[u][i] = sr[u][i] = 0;
  }
  dat[u] = dat[ls] + dat[rs];
  rep(i, 0, 5) {
    cr[u][i] += cr[rs][i];
    cr[u][x[rs][i]] += cr[ls][i];
    sr[u][i] += sr[rs][i];
    sr[u][x[rs][i]] += sr[ls][i] + cr[ls][i] * y[rs][i];
    cl[u][i] += cl[ls][i];
    cl[u][i] += cl[rs][x[ls][i]];
    sl[u][i] += sl[ls][i];
    sl[u][i] += sl[rs][x[ls][i]] + cl[rs][x[ls][i]] * y[ls][i];
    x[u][i] = x[rs][x[ls][i]];
    y[u][i] = y[ls][i] + y[rs][x[ls][i]];
    dat[u] += 1ll * sr[ls][i] * cl[rs][i] + 1ll * cr[ls][i] * sl[rs][i];
  }
}

void build(int u, int l, int r) {
  if (l == r) return down(u, str[l]), void();
  build(ls, l, mid), build(rs, mid + 1, r);
  maintain(u);
}

void modify(int p, char c, int u, int l, int r) {
  if (l == r) return down(u, c), void();
  if (p <= mid) modify(p, c, ls, l, mid);
  else modify(p, c, rs, mid + 1, r);
  maintain(u);
}

#undef ls
#undef rs
#undef mid

int main() {
  scanf("%s", str + 1), n = strlen(str + 1);
  build(1, 1, n);
  printf("%lld\n", dat[1]);
  for (int m = read(); m; -- m) {
    int p = read();
    char c = getchar();
    while (!islower(c)) c = getchar();
    modify(p, c, 1, 1, n);
    printf("%lld\n", dat[1]);
  }
  return 0;
}