# include<iostream> using namespace std; bool is_letter(char a){ return (65<=a&&a<=90)||(97<=a&&a<=122); } int main(){ string a; int cnt=0, l, c=0; getline(cin, a); l = a.size(); for(int i = 0; i <= l; i++){ if(is_letter(a[i]))cnt++; else if(cnt>0){ if(c>0)cout<<","; cout<<cnt; cnt=0; c++; } } return 0; }