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#include<string>
#include <iostream>
#include <vector>
using namespace std;
int main(){
    vector<string> res;
    string word="";
    char c;
    while (cin>>noskipws>>c){
       if(isalpha(c)){
          if(c>='A'&&c<='Z')
              c +=32;
              word +=c;
           
       }
       else {
              if(word!=""){
                  res.push_back(word);
                  word="";
              }
              if(c!=' '){
                  string str;
                  if(c==44) str="44";
                  else if(c==46) str="46";
                  else if(c==10) str="10";
                  res.push_back(str);
                  
              }
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