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#include <bits/stdc++.h>
using namespace std;
bool letter[27] = {1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0};
bool tab[200005];
int main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  string a;
  cin >> a;
  for(int i = 0; i < a.size(); i++){
    int x = a[i] - 'a';
    tab[i + 1] = letter[x];
  }
  int cnts = 0;
  int cntx = 0;
  long long cnt = 0;
  int last = 0;
  for(int i = 1; i <= a.size(); i++){
    if(tab[i] == true){
      cnts++;
      cntx = 0;
    }
    else{
      cnts = 0;
      cntx++;
    }
    if(cntx >= 3 || cnts >= 3){
      cnt += (long long)(i - 2 - last)*(a.size() - i + 1);
      last =  i - 2;
    }
  }
  cout << cnt << '\n';
  return 0;
}