题解

#include<iostream>
#include<cstring>
using namespace std;
int main(){
	string s;
	int flag = 1;
	while(cin>>s){
		if(flag ==1){
			cout<<s.length();
			flag = 0;
		}else{
			cout<<","<<s.length();
		}
		
	}                                    
	return 0;
}