#include<bits/stdc++.h>
using namespace std;
int main()
{
	string s;
	int start=0,end;
	cin>>s;
	cout<<s.size();
	getchar();
	getline(cin,s);
	s=s+' ';
	for(int i=0;i<=s.size()-1;i++)
	{
		if(s[i]==' ')
		{
			end=i-1;
			if(end>=start)
			{
				cout<<","<<end-start+1; 
			}
			start=i+1;
		}
	}
	return 0;
}