#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<algorithm>
using namespace std;
int arr[1000];
int main(){
	string s;
	getline(cin,s);
	int res=0,tmp=0;
	for(int i=0;i<s.length();i++){
		if(s[i]!=' '){
			res++;
		}else{
			arr[tmp] = res;
			res=0;
			tmp+=1;
		}
	}
	arr[tmp] = res;
	res=0;
	tmp+=1;
	for(int i=0;i<tmp;i++){
		if(arr[i]==0){
			continue;
		}
		if(i != tmp-1){
			cout << arr[i] << ',';
		}else{
			cout << arr[i];
		}
	}
	return 0;
}