#include<iostream>
#include<cstring>

using namespace std;

int main(){

	char s;
	int ans=0;
	int c=0;
	char sample;

	sample='…';
	cin>>s;

	while(cin>>s){
		if(s=='\n') break;
		if(s==sample){
			c++;
			if(!(cin>>s)) break;
		}
		else{
			if(c>ans) ans=c;
			c=0;
		}
	}
	if(c>ans) ans=c;
	cout<<ans<<endl;

}