#include<iostream>
#include<string>
#include<vector>
#include<cstdlib>
using namespace std;

int main() {
  char flag;
  while ((flag=getchar())!=EOF) {
    putchar(flag);
    string tmpStr;
    vector<int> buff;
    char c;
    while ((c = getchar()) != '\n') {
      if (c != ' ')
        tmpStr.push_back(c);
      else {
        if (tmpStr != "") {
          buff.push_back(atoi(tmpStr.c_str()));
          tmpStr = "";
        }
      }
    }
    if(tmpStr!="")
      buff.push_back(atoi(tmpStr.c_str()));
    for (auto a : buff)
      cout << a << ' ';
    cout << '\n';
  }
}