text: #include <cstdio>
  #include <cstdlib>
  #include <cstring>
  #include <string>
  #include <iostream>
  using namespace std;
  string cmd,s;
  char ord[333];
  
  int main(){
  	freopen("list","r",stdin);
  	cmd = "g++ ";
  	while(cin >> s)
  		cmd = cmd + s + " ";
  	cmd = cmd + "-o raytracing -O2 -g -Wall && size raytracing";
  	int l = cmd.length();
  	for(int i = 0;i < l;++ i) ord[i] = cmd[i];
  	system(ord);
  	fclose(stdin);
  	return 0;
  }
  