#include <string>

using namespace std;

struct item
{ char type;
  string s;
  int i; };


struct elreader
{ string line;
  int pos;
  elreader(string s);
  char getnext();
  char peeknext();
  string readsym();
  int readnum();
  item readpart(); };


struct element
{ string name, symbol;
  double atwt;
  int atno; 
  void print();
  element();
  element(int an, string sy, string nm, double aw); };

ostream & operator<<(ostream & os, const element & e);


struct ptable
{ element T[150];
  int max, num;
  ptable();
  void read_table();
  element find_sym(const string & sy); };