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#include<iostream>
#include<vector>
#include<string>
using namespace std;

int main(void)
{
	string word;
	cin>>word;
	bool alp[26]={0,1,1,1,0,1,1,1,0,1,1,1,1,1,0,1,1,1,1,1,0,1,1,1,0,1};
	unsigned long long s=0, l=-1;
	for(int i=0,a,b,c; i<word.size()-2; i++)
	{
		a=word[i]-'a';
		b=word[i+1]-'a';
		c=word[i+2]-'a';
		if((alp[a] && alp[b] && alp[c] )|| (!alp[a] && !alp[b] &&	!alp[c]))
		{
			s+=(word.size()-(i+2))*(i-l);	
			l=i;
		}
	}
	cout<<s<<endl;
}